Under President Trump, the Food and Drug Administration may no longer approve seasonal COVID-19 vaccines updated for the virus variants circulating that year, according to recent statements by Trump administration officials.

Since the acute phase of the pandemic, vaccine manufacturers have been subtly updating COVID-19 shots annually to precisely target the molecular signatures of the newest virus variants, which continually evolve to evade our immune responses. So far, the FDA has treated these tweaked vaccines the same way it treats seasonal flu shots, which have long been updated annually to match currently circulating strains of flu viruses.

The FDA does not consider seasonal flu shots brand-new vaccines. Rather, they're just slightly altered versions of the approved vaccines. As such, the regulator does not require companies to conduct lengthy, expensive vaccine trials to prove that each slightly changed version is safe and effective. If they did, generating annual vaccines would be virtually impossible. Each year, from late February to early March , the FDA, the Centers for Disease Control and Prevention, and the World Health Organization direct flu shot makers on what tweaks they should make to shots for the upcoming flu season. That gives manufacturers just enough time to develop tweaks and start manufacturing massive supplies of doses in time for the start of the flu season.

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Since the Iberian Peninsula l ost power in a massive blackout , grid operators are in the process of trying to restore power to millions of customers and businesses. As you might imagine, the process—termed a "black start"—is quite a bit more challenging than flicking on a switch. However, the challenge is made considerably more difficult because nearly everything about the system—from the management hardware that remotely controls the performance of the grid to the power plants themselves—needs power to operate.

Restarting the grid

You might think that a power plant could easily start generating power, but in reality, only a limited number of facilities have everything they need to handle a black start. That's because it takes power to make power. Facilities that boil water have lots of powered pumps and valves, coal plants need to pulverize the fuel and move it to where it's burned, etc. In most cases, black-start-rated plants have a diesel generator present to supply enough power to get the plant operating. These tend to be smaller plants, since they require proportionally smaller diesel generators.

The initial output of these black start facilities is then used to provide power to all the plants that need an external power source to operate. This has to be managed in a way that ensures that only other power plants get the first electrons to start moving on the grid, otherwise the normal demand would immediately overwhelm the limited number of small plants that are operating. Again, this has to be handled by facilities that need power in order to control the flow of energy across the grid. This is why managing the grid will never be as simple as "put the hardware on the Internet and control it remotely," given that the Internet also needs power to operate.

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On Thursday, OpenAI announced the addition of shopping features to ChatGPT Search . The new feature allows users to search for products and purchase them through merchant websites after being redirected from the ChatGPT interface. Product placement is not sponsored, and the update affects all users, regardless of whether they've signed in to an account.

Adam Fry, ChatGPT search product lead at OpenAI, showed Ars Technica's sister site Wired how the new shopping system works during a demonstration. Users researching products like espresso machines or office chairs receive recommendations based on their stated preferences, stored memories, and product reviews from around the web.

According to Wired, the shopping experience in ChatGPT resembles Google Shopping . When users click on a product image, the interface displays multiple retailers like Amazon and Walmart on the right side of the screen, with buttons to complete purchases. OpenAI is currently experimenting with categories that include electronics, fashion, home goods, and beauty products.

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Backblaze is dismissing allegations from a short seller that it engaged in “sham accounting” that could put the cloud storage and backup solution provider and its customers' backups in jeopardy.

On April 24, Morpheus Research posted a lengthy report accusing the San Mateo, California-based firm of practicing “sham accounting and brazen insider dumping.” The claims largely stem from a pair of lawsuits filed against Backblaze by former employees Huey Hall [ PDF ] and James Kisner [ PDF ] in October. Per LinkedIn profiles, Hall was Backblaze’s head of finance from March 2020 to February 2024, and Kisner was Backblaze’s VP of investor relations and financial planning from May 2021 to November 2023.

As Morpheus wrote, the lawsuits accuse Backblaze’s founders of participating in “an aggressive trading plan to sell 10,000 shares a day, along with other potential sales from early employee holders, against ‘all external capital markets advice.’” The plan allegedly started in April 2022, after the IPO lockup period expired and despite advisor warnings, including one from a capital markets consultant that such a trading plan likely breached Backblaze’s fiduciary duties.

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Everyone expects that the Take It Down Act—which requires platforms to remove both real and artificial intelligence-generated non-consensual intimate imagery (NCII) within 48 hours of victims' reports—will likely pass a vote in the House of Representatives tonight.

After that, it goes to Donald Trump's desk, where the president has confirmed that he will promptly sign it into law, joining first lady Melania Trump in strongly campaigning for its swift passing. Victims-turned-advocates, many of them children, similarly pushed lawmakers to take urgent action to protect a growing number of victims from the increasing risks of being repeatedly targeted in fake sexualized images or revenge porn that experts say can quickly spread widely online.

Digital privacy experts tried to raise some concerns, warning that the law seemed overly broad and could trigger widespread censorship online. Given such a short window to comply, platforms will likely remove some content that may not be NCII, the Electronic Frontier Foundation (EFF) warned . And even more troublingly, the law does not explicitly exempt encrypted messages, which could potentially encourage platforms to one day break encryption due to the liability threat. Also, it seemed likely that the removal process could be abused by people who hope platforms will automatically remove any reported content, especially after Trump admitted that he would use the law to censor his enemies .

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Not many people celebrate their birthday by burning a fiery arc through the atmosphere, pulling 4.4gs in freefall back to planet Earth, thudding into the ground, and emptying their stomach on the steppes of Kazakhstan.

No one has ever done it on their 70th birthday.

Perhaps this is appropriate because NASA astronaut Don Pettit is a singular individual. His birthday is April 20, and when the Soyuz spacecraft carrying him landed at dawn in Kazakhstan, the calendar had turned over to that date. John Glenn, then 77, was older when he went to space. But no one as old as Pettit had spent as long as he had in orbit, 220 days, on a mission.

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When the Vietnam War finally ended on April 30, 1975, it left behind a landscape scarred with environmental damage . Vast stretches of coastal mangroves, once housing rich stocks of fish and birds, lay in ruins. Forests that had boasted hundreds of species were reduced to dried-out fragments, overgrown with invasive grasses.

The term “ ecocide” had been coined in the late 1960s to describe the US military’s use of herbicides like Agent Orange and incendiary weapons like napalm to battle guerrilla forces that used jungles and marshes for cover.

Fifty years later, Vietnam’s degraded ecosystems and dioxin-contaminated soils and waters still reflect the long-term ecological consequences of the war. Efforts to restore these damaged landscapes and even to assess the long-term harm have been limited.

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Elon Musk's companies could avoid over $2.3 billion in potential fines and other liabilities thanks to Musk's unusual government position as the head of DOGE, said a memo yesterday from the Democratic staff of the Senate Permanent Subcommittee on Investigations. The estimate is said to include potential liability from federal investigations, litigation, and other regulatory actions.

"Since his appointment, Mr. Musk has taken a chainsaw to the federal government with no apparent regard for the law or for the people who depend on the programs and agencies he so blithely destroys... Mr. Musk's position may allow him to evade oversight, derail investigations, and make litigation disappear whenever he so chooses—on his terms and at his command," the 44-page memo said.

The subcommittee's investigation found that as of January 20, "Musk and his companies were subject to at least 65 actual or potential actions by 11 different federal agencies." The memo said the subcommittee "was able to estimate potential financial liabilities for 40 of the 65 actions by eight federal agencies," resulting in the $2.37 billion total.

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I remain perpetually wrong-footed by the Volkswagen Golf R, the more powerful all-wheel drive upgrade to the venerable VW Golf GTI. I always expect I'm in for a driving experience that is as measured and calm as it is fast. I don't know why I continually underestimate the R— Ars has driven a few of them now, and you'd think I'd remember that maybe the R should stand for "raucous."

VW has been making hot Golfs for as long as I've been on the planet—next year will be the GTI's 50th anniversary. The super-GTI is a little newer. In 1986, the GTI was joined by a more powerful version with a 16-valve engine—here in the US, they also got a capacity bump from 1.8 to 2 L. Later, the much rarer Rallye Golf emerged as a homologation special. Five thousand all-wheel drive, supercharged Golfs were built to make the car eligible for Group A rallying, and then VW Motorsport built a small number of G60 Limiteds —essentially the Rallye with some added luxury like leather, ABS, and power steering.

The Mk2's straight lines gave way to the Mk3's curves, and by then, VW had developed its VR6 engine. Most engines with two banks of cylinders have a V angle of 60 or perhaps 90 degrees; with a V angle of just 15 degrees, the VR6 engine was able to fit in the tight confines of the Golf's engine bay. For the Mk4 and Mk5, this morphed into the Golf R32, where the VR6's power and torque were better harnessed by all-wheel drive.

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