Month: February 2023

SpaceX Ignites Giant Starship Rocket in Crucial Pad Test

SpaceX is a big step closer to sending its giant Starship spacecraft into orbit, completing an engine-firing test at the launch pad on Thursday.

Thirty-one of the 33 first-stage booster engines ignited simultaneously for about 10 seconds in south Texas. The team turned off one engine before sending the firing command and another engine shut down _ “but still enough engines to reach orbit!” tweeted SpaceX’s Elon Musk.

Musk estimates Starship’s first orbital test flight could occur as soon as March, if the test analyses and remaining preparations go well.

The booster remained anchored to the pad as planned during the test. There were no signs of major damage to the launch tower.

NASA is counting on Starship to ferry astronauts to the surface of the moon in a few years, linking up with its Orion capsule in lunar orbit. Further down the road, Musk wants to use the mammoth Starships to send crowds to Mars.

Only the first-stage Super Heavy booster, standing 230 feet (69 meters) tall, was used for Thursday’s test. The futuristic second stage _ the part that will actually land on the moon and Mars _ was in the hangar being prepped for flight.

Altogether, Starship towers 394 feet (120 meters), making it the biggest and most powerful rocket ever built. It’s capable of generating 17 million pounds of liftoff thrust, almost double that of NASA’s moon rocket that sent an empty capsule to the moon and back late last year.

SpaceX fired up to 14 Starship engines last fall and completed a fueling test at the pad last month.

Flocks of birds scattered as Starship’s engines came alive and sent thick dark plumes of smoke across the Starship launch complex, dubbed Starbase. It’s located at the southernmost tip of Texas near the village of Boca Chica, close to the Mexican border.

more

Young People Drive Nairobi’s Graffiti Industry

Nairobi’s public buses and vans, called “matatus,” and their custom graffiti brighten the busy streets of Nairobi. The idea is the glitzier the vehicle’s design, the more customers it will attract. Hubbah Abdi has this report from the Kenyan capital. Narrated by Michele Joseph. (Camera: Joseph Ochieng)

more

Burt Bacharach, Legendary Composer of Pop Songs, Dies at 94

Burt Bacharach, the singularly gifted and popular composer who delighted millions with the quirky arrangements and unforgettable melodies of “Walk on By,” “Do You Know the Way to San Jose” and dozens of other hits, has died at 94.

The Grammy, Oscar and Tony-winning Bacharach died Wednesday at home in Los Angeles of natural causes, publicist Tina Brausam said Thursday.

Over the past 70 years, only Lennon-McCartney, Carole King and a handful of others rivaled his genius for instantly catchy songs that remained performed, played and hummed long after they were written. He had a run of top 10 hits from the 1950s into the 21st century, and his music was heard everywhere from movie soundtracks and radios to home stereo systems and iPods, whether “Alfie” and “I Say a Little Prayer” or “I’ll Never Fall in Love Again” and “This Guy’s in Love with You.”

Dionne Warwick was his favorite interpreter, but Bacharach, usually in tandem with lyricist Hal David, also created prime material for Aretha Franklin, Dusty Springfield, Tom Jones and many others. Elvis Presley, the Beatles and Frank Sinatra were among the countless artists who covered his songs, with more recent performers who sung or sampled him including White Stripes, Twista and Ashanti. “Walk On By” alone was covered by everyone from Warwick and Isaac Hayes to the British punk band the Stranglers and Cyndi Lauper.

Bacharach was both an innovator and throwback, and his career seemed to run parallel to the rock era. He grew up on jazz and classical music and had little taste for rock when he was breaking into the business in the 1950s. His sensibility often seemed more aligned with Tin Pan Alley than with Bob Dylan, John Lennon and other writers who later emerged, but rock composers appreciated the depth of his seemingly old-fashioned sensibility.

“The shorthand version of him is that he’s something to do with easy listening,” Elvis Costello, who wrote the 1998 album “Painted from Memory” with Bacharach, said in a 2018 interview with The Associated Press. “It may be agreeable to listen to these songs, but there’s nothing easy about them. Try playing them. Try singing them.”

A box set, “The Songs of Bacharach & Costello,” is due to come out March 3.

He triumphed in many artforms. He was an eight-time Grammy winner, a prize-winning Broadway composer for “Promises, Promises” and a three-time Oscar winner. He received two Academy Awards in 1970, for the score of “Butch Cassidy and the Sundance Kid” and for the song “Raindrops Keep Fallin’ on My Head” (shared with David). In 1982, he and his then-wife, lyricist Carole Bayer Sager, won for “Best That You Can Do,” the theme from “Arthur. His other movie soundtracks included “What’s New, Pussycat?”, “Alfie” and the 1967 James Bond spoof “Casino Royale.”

Bacharach was well rewarded, and well connected. He was a frequent guest at the White House, whether the president was Republican or Democrat. And in 2012, he was presented the Gershwin Prize by Barack Obama, who had sung a few seconds of “Walk on By” during a campaign appearance.

In his life, and in his music, he stood apart. Fellow songwriter Sammy Cahn liked to joke that the smiling, wavy-haired Bacharach was the first composer he ever knew who didn’t look like a dentist. Bacharach was a “swinger,” as they called such men in his time, whose many romances included actor Angie Dickinson, to whom he was married from 1965-80, and Sager, his wife from 1982-1991.

Married four times, he formed his most lasting ties to work. He was a perfectionist who took three weeks to write “Alfie” and might spend hours tweaking a single chord. Sager once observed that Bacharach’s life routines essentially stayed the same — only the wives changed.

It began with the melodies — strong yet interspersed with changing rhythms and surprising harmonics. He credited much of his style to his love of bebop and to his classical education, especially under the tutelage of Darius Milhaud, the famed composer. He once played a piece for piano, violin and oboe for Milhaud that contained a melody he was ashamed to have written, as 12-point atonal music was in vogue at the time. Milhaud, who liked the piece, advised the young man, “Never be afraid of the melody.”

“That was a great affirmation for me,” Bacharach recalled in 2004.

Bacharach was essentially a pop composer, but his songs became hits for country artists (Marty Robbins), rhythm and blues performers (Chuck Jackson), soul (Franklin, Luther Vandross) and synth-pop (Naked Eyes). He reached a new generation of listeners in the 1990s with the help of Costello and others.

Mike Myers would recall hearing the sultry “The Look of Love” on the radio and finding fast inspiration for his “Austin Powers” retro spy comedies, in which Bacharach made cameos.

In the 21st century, he was still testing new ground, writing his own lyrics and recording with rapper Dr. Dre.

He was married to his first wife, Paula Stewart, from 1953-58, and married for a fourth time, to Jane Hansen, in 1993. He is survived by Hansen, as well as his children Oliver, Raleigh and Cristopher, Brausam said. He was preceded in death by his daughter with Dickinson, Nikki Bacharach.

Bacharach knew the very heights of acclaim, but he remembered himself as a loner growing up, a short and self-conscious boy so uncomfortable with being Jewish he even taunted other Jews. His favorite book as a kid was Ernest Hemingway’s “The Sun Also Rises”; he related to the sexually impotent Jake Barnes, regarding himself as “socially impotent.”

He was born in Kansas City, Missouri, but soon moved to New York City. His father was a syndicated columnist, his mother a pianist who encouraged the boy to study music. Although he was more interested in sports, he practiced piano every day after school, not wanting to disappoint his mother. While still a minor, he would sneak into jazz clubs, bearing a fake ID, and hear such greats as Dizzy Gillespie and Count Basie.

“They were just so incredibly exciting that all of a sudden, I got into music in a way I never had before,” he recalled in the memoir “Anyone Who Had a Heart,” published in 2013. “What I heard in those clubs turned my head around.”

He was a poor student, but managed to gain a spot at the music conservatory at McGill University in Montreal. He wrote his first song at McGill and listened for months to Mel Torme’s “The Christmas Song.” Music also may have saved Bacharach’s life. He was drafted into the Army in the late 1940s and was still on active duty during the Korean War. But officers stateside soon learned of his gifts and wanted him around. When he did go overseas, it was to Germany, where he wrote orchestrations for a recreation center on the local military base.

After his discharge, he returned to New York and tried to break into the music business. He had little success at first as a songwriter, but he became a popular arranger and accompanist, touring with Vic Damone, the Ames Brothers and Stewart, his eventual first wife. When a friend who had been touring with Marlene Dietrich was unable to make a show in Las Vegas, he asked Bacharach to step in.

The young musician and ageless singer quickly clicked and Bacharach traveled the world with her in the late 1950s and early ’60s. During each performance, she would introduce him in grand style: “I would like you to meet the man, he’s my arranger, he’s my accompanist, he’s my conductor, and I wish I could say he’s my composer. But that isn’t true. He’s everybody’s composer … Burt Bacharach!”

Meanwhile, he had met his ideal songwriter partner — David, as businesslike as Bacharach was mercurial, so domesticated that he would leave each night at 5 to catch the train back to his family on Long Island. Working in a tiny office in Broadway’s celebrated Brill Building, they produced their first million-seller, “Magic Moments,” sung in 1958 by Perry Como. In 1962, they spotted a backup singer for the Drifters, Warwick, who had a “very special kind of grace and elegance,” Bacharach recalled.

The trio produced hit after hit. The songs were as complicated to record as they were easy to hear. Bacharach liked to experiment with time signatures and arrangements, such as having two pianists play on “Walk on By,” their performances just slightly out of sync to give the song “a jagged kind of feeling,” he wrote in his memoir.

The Bacharach-David partnership ended with the dismal failure of a 1973 musical remake of “Lost Horizon.” Bacharach became so depressed he isolated himself in his Del Mar vacation home and refused to work.

“I didn’t want to write with Hal or anybody,” he told the AP in 2004. Nor did he want to fulfill a commitment to record Warwick. She and David both sued him.

Bacharach and David eventually reconciled. When David died in 2012, Bacharach praised him for writing lyrics “like a miniature movie.”

Meanwhile, Bacharach kept working, vowing never to retire, always believing that a good song could make a difference.

“Music softens the heart, makes you feel something if it’s good, brings in emotion that you might not have felt before,” he told the AP in 2018. “It’s a very powerful thing if you’re able to do to it, if you have it in your heart to do something like that.”

 

more

Several US Universities to Experiment With Micro Nuclear Power 

If your image of nuclear power is giant, cylindrical concrete cooling towers pouring out steam on a site that takes up hundreds of acres of land, soon there will be an alternative: tiny nuclear reactors that produce only one-hundredth the electricity and can even be delivered on a truck.

Small but meaningful amounts of electricity — nearly enough to run a small campus, a hospital or a military complex, for example — will pulse from a new generation of micronuclear reactors. Now, some universities are taking interest.

“What we see is these advanced reactor technologies having a real future in decarbonizing the energy landscape in the U.S. and around the world,” said Caleb Brooks, a nuclear engineering professor at the University of Illinois at Urbana-Champaign.

The tiny reactors carry some of the same challenges as large-scale nuclear, such as how to dispose of radioactive waste and how to make sure they are secure. Supporters say those issues can be managed and the benefits outweigh any risks.

Universities are interested in the technology not just to power their buildings but to see how far it can go in replacing the coal and gas-fired energy that causes climate change. The University of Illinois hopes to advance the technology as part of a clean energy future, Brooks said. The school plans to apply for a construction permit for a high-temperature, gas-cooled reactor developed by the Ultra Safe Nuclear Corporation, and aims to start operating it by early 2028. Brooks is the project lead.

Microreactors will be “transformative” because they can be built in factories and hooked up on site in a plug-and-play way, said Jacopo Buongiorno, professor of nuclear science and engineering at the Massachusetts Institute of Technology. Buongiorno studies the role of nuclear energy in a clean energy world.

“That’s what we want to see, nuclear energy on demand as a product, not as a big mega project,” he said.

Both Buongiorno and Marc Nichol, senior director for new reactors at the Nuclear Energy Institute, view the interest by schools as the start of a trend.

Last year, Penn State University signed a memorandum of understanding with Westinghouse to collaborate on microreactor technology. Mike Shaqqo, the company’s senior vice president for advanced reactor programs, said universities are going to be “one of our key early adopters for this technology.”

Penn State wants to prove the technology so that Appalachian industries, such as steel and cement manufacturers, may be able to use it, said Professor Jean Paul Allain, head of the nuclear engineering department. Those two industries tend to burn dirty fuels and have very high emissions. Using a microreactor also could be one of several options to help the university use less natural gas and achieve its long-term carbon emissions goals, he said.

“I do feel that microreactors can be a game-changer and revolutionize the way we think about energy,” Allain said.

For Allain, microreactors can complement renewable energy by providing a large amount of power without taking up much land. A 10-megawatt microreactor could go on less than an acre, whereas windmills or a solar farm would need far more space to produce 10 megawatts, he added. The goal is to have one at Penn State by the end of the decade.

Purdue University in Indiana is working with Duke Energy on the feasibility of using advanced nuclear energy to meet its long-term energy needs.

Nuclear reactors that are used for research are nothing new on campus. About two dozen U.S. universities have them. But using them as an energy source is new.

Back at the University of Illinois, Brooks explains the microreactor would generate heat to make steam. While the excess heat from burning coal and gas to make electricity is often wasted, Brooks sees the steam production from the nuclear microreactor as a plus, because it’s a carbon-free way to deliver steam through the campus district heating system to radiators in buildings, a common heating method for large facilities in the Midwest and Northeast. The campus has hundreds of buildings.

The 10-megawatt microreactor wouldn’t meet all of the demand, but it would serve to demonstrate the technology, as other communities and campuses look to transition away from fossil fuels, Brooks said.

One company that is building microreactors that the public can get a look at today is Last Energy, based in Washington, D.C. It built a model reactor in Brookshire, Texas that’s housed in an edgy cube covered in reflective metal.

Now it’s taking that apart to test how to transport the unit. A caravan of trucks is taking it to Austin, where company founder Bret Kugelmass is scheduled to speak at the South by Southwest conference and festival.

Kugelmass, a technology entrepreneur and mechanical engineer, is talking with some universities, but his primary focus is on industrial customers. He’s working with licensing authorities in the United Kingdom, Poland and Romania to try to get his first reactor running in Europe in 2025.

The urgency of the climate crisis means zero-carbon nuclear energy must be scaled up soon, he said.

“It has to be a small, manufactured product as opposed to a large, bespoke construction project,” he said.

Traditional nuclear power costs billions of dollars. An example is two additional reactors at a plant in Georgia that will end up costing more than $30 billion.

The total cost of Last Energy’s microreactor, including module fabrication, assembly and site prep work, is under $100 million, the company says.

Westinghouse, which has been a mainstay of the nuclear industry for over 70 years, is developing its “eVinci” microreactor, Shaqqo said, and is aiming to get the technology licensed by 2027.

The Department of Defense is working on a microreactor too. Project Pele is a DOD prototype mobile nuclear reactor under design at the Idaho National Laboratory.

Abilene Christian University in Texas is leading a group of three other universities with the company Natura Resources to design and build a research microreactor cooled by molten salt to allow for high temperature operations at low pressure, in part to help train the next generation nuclear workforce.

But not everyone shares the enthusiasm. Edwin Lyman, director of nuclear power safety at the Union of Concerned Scientists, called it “completely unjustified.”

Microreactors in general will require much more uranium to be mined and enriched per unit of electricity generated than conventional reactors do, he said. He said he also expects fuel costs to be substantially higher and that more depleted uranium waste could be generated compared to conventional reactors.

“I think those who are hoping that microreactors are going to be the silver bullet for solving the climate change crisis are simply betting on the wrong horse,” he said.

Lyman also said he fears microreactors could be targeted for a terrorist attack, and some designs would use fuels that could be attractive to terrorists seeking to build crude nuclear weapons. The UCS does not oppose using nuclear power, but wants to make sure it’s safe.

The United States does not have a national storage facility for storing spent nuclear fuel and it’s piling up. Microreactors would only compound the problem and spread the radioactive waste around, Lyman said.

A 2022 Stanford-led study found that smaller modular reactors — the next size up from micro — will generate more waste than conventional reactors. Lead author Lindsay Krall said this week that the design of microreactors would make them subject to the same issue.

Kugelmass sees only promise. Nuclear, he said, has been “totally misunderstood and under leveraged.” It will be “the key pillar of our energy transformation moving forward.”

more

Australian Defense Department to Remove Chinese-Made Cameras

Australia’s Defense Department will remove surveillance cameras made by Chinese Communist Party-linked companies from its buildings, the government said Thursday after the U.S. and Britain made similar moves.

The Australian newspaper reported Thursday that at least 913 cameras, intercoms, electronic entry systems and video recorders developed and manufactured by Chinese companies Hikvision and Dahua are in Australian government and agency offices, including the Defense Department and the Department of Foreign Affairs and Trade.

Hikvision and Dahua are partly owned by China’s Communist Party-ruled government.

Australian Defense Minister Richard Marles said his department is assessing all its surveillance technology.

“Where those particular cameras are found, they’re going to be removed,” Marles told Australian Broadcasting Corp. “There is an issue here and we’re going to deal with it.”

Asked about Australia’s decision, Chinese Foreign Ministry spokesperson Mao Ning criticized what she called “wrongful practices that overstretch the concept of national security and abuse state power to suppress and discriminate against Chinese enterprises.”

Without mentioning Australia by name, Mao said the Chinese government has “always encouraged Chinese enterprises to carry out foreign investment and cooperation in accordance with market principles and international rules, and on the basis of compliance with local laws.”

“We hope Australia will provide a fair and non-discriminatory environment for the normal operation of Chinese enterprises and do more things that are conducive to mutual trust and cooperation between the two sides,” she told reporters at a daily briefing.

The U.S. government said in November it was banning telecommunications and video surveillance equipment from several prominent Chinese brands including Hikvision and Dahua in an effort to protect the nation’s communications network.

Security cameras made by Hikvision were also banned from British government buildings in November.

An audit in Australia found that Hikvision and Dahua cameras and security equipment were found in almost every department except the Agriculture Department and the Department of Prime Minister and Cabinet.

The Australian War Memorial and National Disability Insurance Agency have said they will remove the Chinese cameras found at their sites, the ABC reported.

Opposition cybersecurity spokesperson James Paterson said he had prompted the audit by asking questions over six months of each federal agency, after the Home Affairs Department was unable to say how many of the cameras, access control systems and intercoms were installed in government buildings.

“We urgently need a plan from the … government to rip every one of these devices out of Australian government departments and agencies,” Paterson said.

Both companies are subject to China’s National Intelligence Law which requires them to cooperate with Chinese intelligence agencies, he said.

“We would have no way of knowing if the sensitive information, images and audio collected by these devices are secretly being sent back to China against the interests of Australian citizens,” Paterson said.

more

NASCAR Driving Toward Diversity

NASCAR, the American stock car racing company, is celebrating its 75th anniversary and striving to bring diversity to the sport. Genia Dulot visited a preseason NASCAR race in Los Angeles and spoke to Daniel Suarez, the first Mexican-born racing driver to win a NASCAR cup series.
Camera: Genia Dulot

more

Sudan’s Tropical Disease Spike Reflects Poor Health System

The two Sudanese women thought they had malaria and were taking their medication, but things took a dire turn. Both complained of a splitting headache and fever that didn’t respond to the antimalaria treatment.

By the time she was diagnosed with dengue fever, Raqiya Abdsalam was unconscious.

“Soon after they examined me, I fell into a coma,” she said, recounting her ordeal some three months ago. Both women have since recovered and are at home in the city of El Obeid in the central province of North Kordofan.

For decades, Sudan’s underfunded public health sector has struggled to effectively diagnose or treat patients as significant government spending went to its vast security services. A recent spike in mosquito-borne diseases — such as dengue fever and malaria — has underscored the fragility of the African country’s health system, boding ill for future challenges driven by climate change.

Sudan’s best-equipped hospitals are concentrated in the capital, Khartoum, leaving those from far-flung provinces reliant on aid projects. But many of those have disappeared.

In October 2021, Sudan’s leading military figure, Gen. Abdel-Fattah Burhan, led a coup that derailed the country’s short-lived democratic transition. The move spurred a sharp reduction in aid, with the U.N Office for the Coordination of Humanitarian Affairs reporting that funding levels fell to less than 50% of required needs for both 2021 and 2022.

Burhan with his ruling generals and several other political forces pledged in December to install a new civilian government. But political wrangling is impeding a final deal, and it remains unclear when — and if — donor funding will return to previous levels.

In late fall, a young doctor at a North Kordofan hospital thought that what she was seeing was a new malaria outbreak. Patients arriving at her hospital had malaria-like symptoms — high fever, body fatigue and a migraine-like headache.

But after blood samples were sent to a laboratory in Khartoum for testing, a worrisome picture emerged. Some of the patients did have malaria, which is caused by a parasite, but others had dengue fever — similar in symptoms but caused by a virus. If severe and untreated, dengue fever can lead to organ failure and death.

The young physician said the hospital lacked the facilities to deal with the outbreak. “Patients had to either lie on the floor or bring their own beds to the hospital,’’ she said.

While malaria is common across central and southern Sudan, large dengue outbreaks are rare. But last fall and winter, dengue fever spread to 12 of the country’s 18 provinces, killing at least 36 people and infecting more than 5,200, according to Sudan’s Ministry of Health. However, the actual numbers are likely higher, given the limitations on testing.

‘‘Most hospitals outside of Khartoum are not connected to the Ministry of Health database,’’ said Alaaeldin Awad Mohamed Nogoud, a liver and transplant surgeon who is also a prominent pro-democracy activist.

The World Health Organization says several factors enabled the dengue outbreak, including the absence of disease surveillance infrastructure and heavy flooding in autumn. The stagnant water allowed mosquitoes to breed and fueled the spread of the disease.

Health experts also fear that growing mosquito migration, induced by climate change, could spur new surges in dengue fever, among other tropical diseases typically found beyond Sudan’s southern borders. The Aedes aegypti, a long-legged mosquito growing in number across Sudan that can carry the dengue virus, is causing particular concern.

According to Anne Wilson, an epidemiologist at the Liverpool School of Tropical Medicine, containing illnesses spread by the Aedes aegypti is difficult because it mostly bites during the day, rendering insecticide-treated nets, similar to mosquito nets for beds, less effective.

Sudan’s public hospitals are state-run, but patients often still pay for drugs and tests. Hospitals in rural areas are the most depleted, stocked with little more than metal-frame beds and doctors.

In North Kordofan — the site of the recent dengue outbreak — some believe the virus went unchecked for months due to a widespread lack of blood testing equipment. Abdsalam and Amany Adris, the two women from El Obeid, said several doctors had told them they had malaria before they were correctly diagnosed.

After the Ministry of Health officially recognized the outbreak in November, officials say free testing and treatment were made available to dengue fever patients. And by January, North Kordofan was declared free of dengue fever.

But even after that announcement, the young doctor from the province said she was treating suspected cases. Few patients can afford to pay for the blood tests themselves, however, she added.

Both Nogoud and the young physician said widespread shortages are forcing physicians to go to black market for basic medicines, such as paracetamol IV drips to treat fever.

For years, Sudan has been in an economic crisis with annual inflation topping 100% on most months. Since 2018, the Sudanese pound has lost over 95% of its value against the dollar, making it difficult to buy pharmaceuticals or medical equipment from abroad.

By the end of last year, Sudan’s National Medical Supplies Fund — the body tasked with procuring pharmaceuticals — said the availability of cancer drugs stood at 48% of needed levels, and other emergency medication was at 68%. Doctors, working with little pay and in difficult conditions, have regularly gone on strike.

Critics accuse the country’s leaders of not putting more funds towards the health sector. The federal budget for 2021, listed on the government’s website, said the country’s health ministry would receive less than half of what would be allocated to the Sudanese Armed Forces and the Rapid Support Forces, the country’s largest paramilitary group. The military spokesperson did not respond to AP’s request for comment.

With few resources, the Health Ministry has turned to short videos on social media, encouraging people in a catchy song to cover standing water sources and install netting on windows.

Few see this as a long-term solution.

“The whole country is in a state of chaos,” said Nada Fadul, an infectious diseases physician and associate of the Sudanese non-governmental organization NexGen.

“Health care might not become the priority for survival,” Fadul added.

more

US Students’ ‘Big Idea’ Could Help NASA Explore the Moon

Last November, Northeastern University student Andre Neto Caetano watched the live, late-night launch of NASA’s Artemis 1 from Kennedy Space Center in Florida on a cellphone placed on top of a piano in the lobby of the hotel where he was staying in California.

“I had, not a flashback, but a flash-forward of seeing maybe Artemis 4 or something, and COBRA, as part of the payload, and it is on the moon doing what it was meant to do,” Caetano told VOA during a recent Skype interview.

Artemis 1 launched the night before Caetano and his team of scholars presented their Crater Observing Bio-inspired Rolling Articulator (COBRA) rover project at NASA’s Breakthrough, Innovative, and Game Changing (BIG) Idea Challenge. The team hoped to impress judges assembled in the remote California desert.

“They were skeptical that the mobility solutions that we were proposing would actually work,” he said.

That skepticism, said Caetano, came from the simplicity of their design.

“It’s a robot that moves like a snake, and then the head and the tail connect, and then it rolls,” he said.

NASA’s BIG Idea Challenge prompted teams of college students to compete to develop solutions for the agency’s ambitious goals in the upcoming Artemis missions to the moon, which Caetano explains are “extreme lunar terrain mobility.”

Northeastern’s COBRA is designed to move through the fine dust, or regolith, of the lunar surface to probe the landscape for interesting features, including ice and water, hidden in the shadows of deep craters.

“They never could … deploy a robot or a ground vehicle that can sort of negotiate the environment and get to the bottom of these craters and look for ice water content,” said professor Alireza Ramezani, who advises the COBRA team and has worked with robotic designs that mimic the movements of real organisms, something Caetano said formed a baseline for their research.

“With him building a robot dog and robot bat, we knew we wanted to have some ‘bioinspiration’ in our project,” Caetano said.

Using biology as the driving force behind COBRA’s design was also something Ramezani hoped would win over judges in NASA’s competition.

“Our robot sort of tumbled 80 to 90 feet (24-27 meters) down this hill and that … impressed the judges,” he told VOA. “We did this with minimum energy consumption and within, like, 10 or 15 seconds.”

Caetano said COBRA weighs about 7 kilograms, “so the fact that COBRA is super light brings a benefit to it, as well.”

Ramezani added that COBRA is also cost-effective.

“If you want to have a space-worthy platform, it’s going to be in the order of $100,000 to $200,000. You can have many of these systems tumbling down these craters,” he said.

The Northeastern team’s successful COBRA test put to rest any lingering skepticism, sending them to the top of NASA’s 2022 BIG Idea competition and hopefully — in the not-too-distant future — to the top of NASA’s Space Launch System on its way to the moon.

“I’m not saying this, our judges said this. It’s potentially going to transform the way future space exploration systems look like,” said Ramezani. “They are even talking to some of our partners to see if we can increase technology readiness of the system, make it space worthy, and deploy it to the moon.”

Which is why, despite his impending graduation later this year, Caetano plans to continue developing COBRA alongside his teammates.

“Because we brought it to life together, the idea of just fully abandoning it at graduation probably doesn’t appeal to most of us,” Caetano said. “In some way or another, we still want to be involved in the project, in making sure that … we are still the ones who put it on the moon at some point.”

That could happen as soon as 2025, the year NASA hopes to return astronauts to the lunar surface in the Artemis program.

more

Australia to Review Chinese-Made Cameras in Defense Offices

The Australian government will examine surveillance technology used in offices of the defense department, Defense Minister Richard Marles said Thursday, amid reports the Chinese-made cameras installed there raised security risks.

The move comes after Britain in November asked its departments to stop installing Chinese-linked surveillance cameras at sensitive buildings. Some U.S. states have banned vendors and products from several Chinese technology companies.

“This is an issue and … we’re doing an assessment of all the technology for surveillance within the defense (department) and where those particular cameras are found, they are going to be removed,” Marles told ABC Radio in an interview.

Opposition lawmaker James Paterson said Thursday his own audit revealed almost 1,000 units of equipment by Hangzhou Hikvision Digital Technology and Dahua Technology, two partly state-owned Chinese firms, were installed across more than 250 Australian government offices.

Paterson, the shadow minister for cybersecurity and countering foreign interference, urged the government to urgently come up with a plan to remove all such cameras.

Marles said the issue was significant but “I don’t think we should overstate it.”

Australian media reported on Wednesday that the national war memorial in Canberra would remove several Chinese-made security cameras installed on the premises over concerns of spying.

Hikvision and Dahua Technology did not immediately respond to requests seeking comment.

Australia and China have been looking to mend diplomatic ties, which soured after Canberra in 2018 banned Huawei from its 5G broadband network. That cooled further after Australia called for an independent investigation into the origins of COVID-19.

China responded with tariffs on several Australian commodities.

Prime Minister Anthony Albanese said he was not concerned about how Beijing might react to the removal of cameras.

“We act in accordance with Australia’s national interest. We do so transparently and that’s what we will continue to do,” Albanese told reporters.

more

COVID Treatment Shows Encouraging Results in Trial, Study Says 

A single-injection antiviral treatment for newly infected COVID-19 patients reduced the risk of hospitalization by half in a large-scale clinical trial, a study published Wednesday said.

Stanford University professor Jeffrey Glenn, co-author of the study published in the New England Journal of Medicine, said the new drug “showed profound benefits for vaccinated and unvaccinated people alike.”

While the number of Americans dying daily of the disease caused by a coronavirus has fallen to about 500, treatments for COVID-19 remain limited. One of the most common — Paxlovid, made by Pfizer — involves taking 30 pills over five days.

The new treatment involves a single dose of pegylated interferon lambda, a synthetic version of a naturally occurring protein that infected cells secrete to defend against viral infection.

“What it does is it binds receptors on the surfaces of cells that activate our own antiviral defense mechanisms,” said Glenn, a professor of medicine, microbiology and immunology who heads the Stanford Biosecurity and Pandemic Preparedness Initiative.

“So if a virus has infected the cell, it will turn on processes that aim to destroy the virus’s replication,” he said. “It will also send signals to neighboring cells to warn them viruses are on their way and get ready to defend yourself.”

Receptors for interferon lambda are primarily in the linings of the lungs, airways and intestine — the main places COVID-19 strikes.

“We’re turning on these antiviral mechanisms in the cells, the lung, where the infection is happening,” Glenn said.

The phase three trial of the drug, conducted from June 2021 to February 2022, involved nearly 2,000 patients with COVID symptoms in Brazil and Canada, about 85 percent of whom had been vaccinated.

A total of 931 newly infected COVID patients were given a single injection of interferon lambda, while 1,018 participants were given a placebo.

The risk of COVID-19–related hospitalization or death from any cause was 47 percent lower in the interferon group than in the placebo group, according to the researchers.

Twenty-five of the 931 people who received the injection within seven days of exhibiting COVID symptoms were hospitalized, compared with 57 of the 1,018 who received the placebo.

Vaccinated patients treated with interferon lambda experienced a 51 percent reduction in hospitalization relative to the placebo group.

There was an 89 percent reduction in hospitalization among unvaccinated patients treated within the first three days of the onset of COVID symptoms compared with the placebo group.

Developed for hepatitis D

Glenn said interferon lambda proved effective against all COVID variants tested, including omicron, and side effects in the group receiving the injections were no greater than among the placebo recipients.

Glenn is the founder of a small biotechnology company called Eiger Biopharmaceuticals that acquired interferon lambda to develop drugs for the hepatitis delta virus.

“When COVID came, I said this would be the perfect drug for COVID,” said Glenn, who left the Palo Alto company but remains on the board of directors and is an equity holder.

Eiger sought an emergency use authorization for interferon lambda from the U.S. Food and Drug Administration for COVID treatment last year, but it was not granted.

That was “very frustrating,” Glenn said, though he was hopeful that publication of the study in the New England Journal of Medicine “will help encourage regulators here and around the world to find a way to get lambda into patients as soon as possible.”

more

Could a Sprinkle of Moon Dust Keep Earth Cool?

Whether out-of-the-box thinking or a sign of desperation, scientists on Wednesday proposed the regular transport of moon dust to a point between Earth and Sun to temper the ravages of global warming. 

Ideas for filtering solar radiation to keep Earth from overheating have been kicking around for decades, ranging from giant space-based screens to churning out reflective white clouds. 

But the persistent failure to draw down planet-warming greenhouse gas emissions has pushed once-fanciful geoengineering schemes toward center stage in climate policy, investment and research. 

Blocking 1%-2% of the Sun’s rays is all it would take to lower Earth’s surface by a degree or two Celsius, roughly the amount it has warmed over the last century. 

The solar radiation technique with the most traction so far is the 24/7 injection of billions of shiny sulfur particles into the upper atmosphere. 

So-called stratospheric aerosol injection would be cheap, and scientists know it works because major volcanic eruptions basically do the same thing. When Mount Pinatubo in the Philippines blew its top in 1991, it lowered temperatures in the northern hemisphere by about 0.5 Celsius for nearly a year. 

But there are serious potential side-effects, including the disruption of rain patterns upon which millions depend for growing food.  

However, a new study in the peer-reviewed journal PLOS Climate explores the possibility of using moon dust as a solar shield. 

A team of astronomers applied methods used to track planet formation around distant stars — a messy process that kicks up vast quantities of space dust — to Earth’s moon. 

Computer simulations showed that putting lunar dust at a gravitational sweet spot between Earth and Sun “blocked out a lot of sunlight with a little amount of mass,” said lead author Ben Bromley, a professor of physics at the University of Utah. 

‘Balancing marbles’ 

The scientists tested several scenarios involving different particle properties and quantities in different orbits, looking for the one that would throw the most shade. 

Moon dust worked best. The quantities needed, they said, would require the equivalent of a major mining operation on Earth. 

The authors stressed that their study was designed to calculate potential impact, not logistical feasibility. 

“We aren’t experts in climate change or rocket science,” said co-author Benjamin Bromley, a professor at the Harvard-Smithsonian Center for Astrophysics. 

“We were just exploring different kinds of dust on a variety of orbits to see how effective this approach might be,” he added. “We don’t want to miss a game changer for such a critical problem.” 

Experts not involved in the study praised its methodology but doubted whether it would actually work. 

“Placing moon dust at the gravity midpoint between Earth and Sun, can indeed reflect heat,” said University of Edinburgh professor Stuart Haszeldine. 

“But this is like trying to balance marbles on a football — within a week most dust has spun out of stable orbit.” 

For Joanna Haigh, an emeritus professor of atmospherics at Imperial College London, the study is a distraction. 

The main problem, she said, “is the suggestion that the implementation of such schemes will solve the climate crisis whereas it just gives polluters an excuse not to act.” 

more

Ex-Twitter Execs Deny Pressure to Block Hunter Biden Story

Former Twitter executives conceded Wednesday they made a mistake by blocking a story about Hunter Biden, the son of U.S. President Joe Biden, from the social media platform in the run-up to the 2020 election, but adamantly denied Republican assertions they were pressured by Democrats and law enforcement to suppress the story.

“The decisions here aren’t straightforward, and hindsight is 20/20,” Yoel Roth, Twitter’s former head of trust and safety, testified to Congress. “It isn’t obvious what the right response is to a suspected, but not confirmed, cyberattack by another government on a presidential election.”

He added, “Twitter erred in this case because we wanted to avoid repeating the mistakes of 2016.”

The three former executives appeared before the House Oversight and Accountability Committee to testify for the first time about the company’s decision to initially block from Twitter a New York Post article in October 2020 about the contents of a laptop belonging to Hunter Biden.

Emboldened by Twitter’s new leadership in billionaire Elon Musk — whom they see as more sympathetic to conservatives than the company’s previous leadership — Republicans used the hearing to push a long-standing and unproven theory that social media companies including Twitter are biased against them.

Committee Chairman Representative James Comer said the hearing is the panel’s “first step in examining the coordination between the federal government and Big Tech to restrict protected speech and interfere in the democratic process.”

Alleged political bias

The hearing continues a yearslong trend of Republican leaders calling tech company leaders to testify about alleged political bias. Democrats, meanwhile, have pressed the companies on the spread of hate speech and misinformation on their platforms.

The witnesses Republicans subpoenaed were Roth, Vijaya Gadde, Twitter’s former chief legal officer, and James Baker, the company’s former deputy general counsel.

Democrats brought a witness of their own, Anika Collier Navaroli, a former employee with Twitter’s content moderation team. She testified last year to the House committee that investigated the January 6 Capitol riot about Twitter’s preferential treatment of Donald Trump until it banned the then-president from the site two years ago.

‘A bizarre political stunt’

The White House criticized congressional Republicans for staging “a bizarre political stunt,” hours after Biden’s State of the Union address where he detailed bipartisan progress in his first two years in office.

“This appears to be the latest effort by the House Republican majority’s most extreme MAGA members to question and relitigate the outcome of the 2020 election,” White House spokesperson Ian Sams said in a statement Wednesday. “This is not what the American people want their leaders to work on.”

The New York Post reported weeks before the 2020 presidential election that it had received from Trump’s personal lawyer, Rudy Giuliani, a copy of a hard drive from a laptop that Hunter Biden had dropped off 18 months earlier at a Delaware computer repair shop and never retrieved. Twitter blocked people from sharing links to the story for several days.

“You exercised an amazing amount of clout and power over the entire American electorate by even holding (this story) hostage for 24 hours and then reversing your policy,” Representative Andy Biggs said to the panel of witnesses.

Months later, Twitter’s then-CEO, Jack Dorsey, called the company’s communications around the Post article “not great.” He added that blocking the article’s URL with “zero context” around why it was blocked was “unacceptable.”

The newspaper story was greeted at the time with skepticism because of questions about the laptop’s origins, including Giuliani’s involvement, and because top officials in the Trump administration had already warned that Russia was working to denigrate Joe Biden before the White House election.

The Kremlin interfered in the 2016 race by hacking Democratic emails that were subsequently leaked, and fears that Russia would meddle again in the 2020 race were widespread across Washington.

Musk releases ‘Twitter files’

Just last week, lawyers for the younger Biden asked the U.S. Justice Department to investigate people who say they accessed his personal data. But they did not acknowledge that the data came from a laptop Hunter Biden is purported to have dropped off at a computer repair shop.

The issue was also reignited recently after Musk took over Twitter as CEO and began to release a slew of company information to independent journalists, what he has called the “Twitter Files.”

The documents and data largely show internal debates among employees over the decision to temporarily censor links to the Hunter Biden story. The tweet threads lacked substantial evidence of a targeted influence campaign from Democrats or the FBI, which has denied any involvement in Twitter’s decision-making.

Witness often targeted

One of Wednesday’s witnesses, Baker, has been a frequent target of Republican scrutiny.

Baker was the FBI’s general counsel during the opening of two of the bureau’s most consequential investigations in history: the Hillary Clinton investigation and a separate inquiry into potential coordination between Russia and Trump’s 2016 presidential campaign. Republicans have long criticized the FBI’s handling of both investigations.

Baker denied any wrongdoing during his two years at Twitter and said that despite disagreeing with the decision to block links to the Post story, “I believe that the public record reveals that my client acted in a manner that was fully consistent with the First Amendment.”

There has been no evidence that Twitter’s platform is biased against conservatives; studies have found the opposite when it comes to conservative media in particular. But the issue continues to preoccupy Republican members of Congress.

And some experts said questions around government influence on Big Tech’s content moderation are legitimate.

more

Astronomers Astonished by Ring Around Frigid Distant World Quaoar

The small distant world called Quaoar, named after a god of creation in Native American mythology, is producing some surprises for astronomers as it orbits beyond Pluto in the frigid outer reaches of our solar system.

Researchers said Wednesday they have detected a ring encircling Quaoar akin to the one around the planet Saturn. But the one around Quaoar defies the current understanding of where such rings can form – located much further away from it than current scientific understanding would allow.

The distance of the ring from Quaoar places it in a location where scientists believe particles should readily come together around a celestial body to form a moon rather than remain as separate components in a disk of ring material.

“This is the discovery of a ring located in a place that should not be possible,” said astronomer Bruno Morgado of the Valongo Observatory and the Federal University of Rio de Janeiro in Brazil, lead author of the study published in the journal Nature.

Discovered in 2002, Quaoar is currently defined as a minor planet and is proposed as a dwarf planet, though it has not yet been formally given that status by the International Astronomical Union, the scientific body that determines such things.

Its diameter of about 1,110 kilometers is about a third that of Earth’s moon and half that of the dwarf planet Pluto. It has a small moon called Weywot, Quaoar’s son in mythology, with a diameter of 170 kilometers, orbiting beyond the ring.  

Inhabiting a distant region called the Kuiper belt populated by various icy bodies, Quaoar orbits about 43 times further than Earth’s distance to the sun. In comparison, Neptune, the outermost planet, orbits about 30 times further than Earth’s distance from the sun, and Pluto about 39 times further.

Quaoar’s ring was spotted using the European Space Agency’s orbiting Cheops telescope, whose primary purpose is to study planets beyond our solar system, as well as ground-based telescopes.

The ring, a clumpy disk made of ice-covered particles, is located about 4,100 kilometers away from Quaoar’s center, with a diameter of about 8,200 kilometers.

“Ring systems may be due to debris from the same formation process that originated the central body or may be due to material resulting after a collision with another body and captured by the central body. We do not have hints at the moment on how the Quaoar ring formed,” said astronomer and study co-author Isabella Pagano, director of Italian research institute INAF’s Astrophysical Observatory of Catania.

Unlike any other known ring around a celestial body, Quaoar’s is located outside what is called the Roche limit. That refers to the distance from any celestial body possessing an appreciable gravitational field within which an approaching object would be pulled apart. Material in orbit outside the Roche limit would be expected to assemble into a moon.

Saturn has the largest ring system in our solar system. The other large gas planets – Jupiter, Uranus and Neptune – all have rings, though less impressive, as do the non-planetary bodies Chariklo and Haumea. All reside inside the Roche limit.

But how can Quaoar flout this rule?

“We considered some possible explanations: a ring made of debris, resulting from a putative disruptive impact into a Quaoar moon, would survive for a very short time – but the probability to observe that is extremely low,” Pagano said.

“Another possibility is that theories for the aggregation of icy particles need to be revised, and particles might not always aggregate into larger bodies as quickly as one might expect.”

more

US Students’ ‘Big Idea’ Could Help NASA Explore Moon

A serpentlike robot designed by students from Northeastern University in Boston, Massachusetts, could revolutionize how NASA astronauts explore the lunar surface. VOA’s Kane Farabaugh has more

more

LeBron James Becomes US Pro-Basketball’s All-Time Scoring Leader

U.S. basketball star LeBron James of the Los Angeles Lakers became the National Basketball Association’s all-time leading scorer Tuesday. 

James hit a two-point basket late in the third quarter in the game against the visiting Oklahoma City Thunder to surpass the 38,387 career points held by Lakers’ legend and Hall-of-Famer Kareem Abdul-Jabbar. Abdul-Jabbar, who was in Crypto.com Arena to watch the historic moment, had held the record since April 5,1984.  

James entered Tuesday’s game needing just 36 points to break the record. He finished the game with 38 points, giving him 38,390 points for his career to date. But the Thunder won the game 133-130. 

The record adds to James’s already illustrious 20-year NBA career, which began as an 18-year-old rookie with the Cleveland Cavaliers. He has since won four NBA championships, four season Most Valuable Player awards and four NBA Finals MVP awards. 

Following James and Abdul-Jabbar on the NBA’s all-time scoring list are Karl Malone, the late Kobe Bryant and Michael Jordan, universally considered to be the greatest NBA player of all time. Another Lakers’ legend, the late Wilt Chamberlain, is in seventh-place with 31,419 points. 

When asked in a post-game interview with retired great Shaquille O’Neal, who won three NBA titles with the Lakers, if he was now the greatest player in NBA history, James said he always feels like “I’m the best to ever play this game” but said he was happy to be mentioned with the league’s other great players.  

Some information for this report came from The Associated Press and Reuters. 

more

US State Court System, US, EU Universities Hit by Ransomware Outbreak

A global ransomware outbreak has scrambled servers belonging to the U.S. state of Florida’s Supreme Court and several universities in the United States and Central Europe, according to a Reuters analysis of ransom notes posted online to stricken servers.

Those organizations are among more than 3,800 victims of a fast-spreading digital extortion campaign that locked up thousands of servers in Europe over the weekend, according to figures tallied by Ransomwhere, a crowdsourced platform that tracks digital extortion attempts and online ransom payments and whose figures are drawn from internet scans.

Ransomware is among the internet’s most potent scourges. Although this extortion campaign was not sophisticated, it drew warnings from national cyber watchdogs in part because of the speed of its spread.

Ransomwhere did not name individual victims, but Reuters was able to identify some by looking up internet protocol address data tied to the affected servers via widely used internet scanning tools such as Shodan.

The extent of the disruption to the affected organizations, if any, was not clear.

Florida Supreme Court spokesperson Paul Flemming told Reuters that the affected infrastructure had been used to administer other elements of the Florida state court system, and that it was segregated from the Supreme Court’s main network.

“Florida Supreme Court’s network and data are secure,” he said, adding that the rest of the state court system’s integrity also was not affected.

A dozen universities contacted by Reuters, including the Georgia Institute of Technology in Atlanta, Rice University in Houston, and institutions of higher learning in Hungary and Slovakia, did not immediately return messages seeking comment.

Reuters also contacted the hackers via an account advertised on their ransom notes but only received a payment demand in return. They did not respond to additional questions.

Ransomwhere said the cybercriminals appear to have extorted only $88,000, a modest haul by the standard of multimillion-dollar ransoms regularly demanded by some hacking gangs.

One cybersecurity expert said the outbreak, thought to have exploited a 2-year-old vulnerability in VMWare software, was typical of automated attacks on servers and databases that have been carried out by hackers for years.

VMWare has urged customers to upgrade to the latest versions of its software.

“This is nothing unusual,” said Patrice Auffret, founder of French internet scanning company Onyphe. “The difference is the scale.”

Also uncommon is the highly visible nature of the outbreak, which began earlier this month. Because internet-facing servers were affected, researchers and tracking services like Ransomwhere or Onyphe could easily follow the criminals’ trail.

Digital safety officials in Italy said Monday that there was no evidence pointing to “aggression by a state or hostile state-like entity.”

Samuli Kononen, an information security specialist at the Finnish National Cyber Security Centre, said the attack was likely carried out by a criminal gang, although he added that it was not particularly sophisticated as many victims had managed to salvage their data without paying a ransom.

“More experienced ransomware groups usually don’t make that kind of mistake,” he said.

more

Doctor Accused of Spreading Deadly Meningitis Arrested in Mexico

Mexican police detained a medical doctor accused of using infected medicines that may have caused a mysterious meningitis outbreak in northern Durango state, after the disease killed at least 35 women in recent months.

Another 79 people have been hospitalized with signs of infection.

Police arrested the doctor who specializes in anesthesiology early Tuesday morning on charges of illegal practices including the re-use of medications at the private hospitals where he worked. The doctor’s full name was not disclosed.

Meningitis is typically associated with painful inflammation of the brain and spinal cord, often caused by a virus or in some cases bacteria or a fungal infection.

The affected patients in Durango were likely infected by fungal meningitis while having procedures in the same hospitals where the doctor worked, according to Durango state prosecutor Sonia Garza.

She told reporters at a news conference on Tuesday in the state capital that the first procedures associated with the infected patients took place last August and that many of them had been administered anesthesia for obstetric procedures.

“This specialist carried out procedures with no restraint,” said Garza, adding that he brought his own medication for patients, including unauthorized controlled drugs.

The outbreak has raised concern in both Mexico and from international bodies after the outbreak’s first death was confirmed last November.

Garza added that the detained doctor was the only physician who conducted procedures at the four hospitals where the infections have been observed. She said that he denied using his own medications at a hearing before prosecutors.

Reuters was not immediately able to request comment from the doctor, or locate his lawyer, but his son, contacted by Reuters, said his father is innocent.

“They accused my father without any evidence,” he said, declining to provide his name.

The meningitis outbreak is confined to private hospitals in the state capital, also known as Durango, according to Mexico’s health ministry.

more

Ex-Twitter Executives to Testify About Hunter Biden Story Before House Panel

Former Twitter employees are expected to testify next week before the House Oversight Committee about the social media platform’s handling of reporting on President Joe Biden’s son, Hunter Biden.

The scheduled testimony, confirmed by the committee Monday, will be the first time the three former executives will appear before Congress to discuss the company’s decision to initially block from Twitter a New York Post article regarding Hunter Biden’s laptop in the weeks before the 2020 election.

Republicans have said the story was suppressed for political reasons, though no evidence has been released to support that claim. The witnesses for the February 8 hearing are expected to be Vijaya Gadde, former chief legal officer; James Baker, former deputy general counsel; and Yoel Roth, former head of safety and integrity.

The hearing is among the first of many in a GOP-controlled House to be focused on Biden and his family, as Republicans wield the power of their new, albeit slim, majority.

The New York Post first reported in October 2020 that it had received from former President Donald Trump’s personal attorney, Rudy Giuliani, a copy of a hard drive of a laptop that Hunter Biden had dropped off 18 months earlier at a Delaware computer repair shop and never retrieved. Twitter initially blocked people from sharing links to the story for several days.

Months later, Twitter’s then-CEO Jack Dorsey called the company’s communications around the Post article “not great.” He added that blocking the article’s URL with “zero context” around why it was blocked was “unacceptable.”

The Post article at the time was greeted with skepticism due to questions about the laptop’s origins, including Giuliani’s involvement, and because top officials in the Trump administration already had warned that Russia was working to denigrate Joe Biden ahead of the 2020 election.

The Kremlin had interfered in the 2016 race by hacking Democratic emails that were subsequently leaked, and there were widespread fears across Washington that Russia would meddle again in the 2020 race.

“This is why we’re investigating the Biden family for influence peddling,” Rep. James Comer, chairman of the Oversight committee, said at a press event Monday morning. “We want to make sure that our national security is not compromised.”

The White House has sought to discredit the Republican probes into Hunter Biden, calling them “divorced-from-reality political stunts.”

Nonetheless, Republicans now hold subpoena power in the House, giving them the authority to compel testimony and conduct an aggressive investigation. GOP staff has spent the past year analyzing messages and financial transactions found on the laptop that belonged to the president’s younger son. Comer has previously said the evidence they have compiled is “overwhelming,” but did not offer specifics.

Comer has pledged there won’t be hearings regarding the Biden family until the committee has the evidence to back up any claims of alleged wrongdoing. He also acknowledged the stakes are high whenever an investigation centers on the leader of a political party.

On Monday, the Kentucky Republican, speaking at a National Press Club event, said that he could not guarantee a subpoena of Hunter Biden during his term. “We’re going to go where the investigation leads us. Maybe there’s nothing there.”

Comer added, “We’ll see.” 

more