The Download: the next anti-drone weapon, and powering AI’s growth

This is today’s edition of The Download, our weekday newsletter that provides a daily dose of what’s going on in the world of technology. This giant microwave may change the future of war Imagine: China deploys hundreds of thousands of autonomous drones in the air, on the sea, and under the water—all armed with explosive warheads or…

May 29, 2025 - 20:40
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The Download: the next anti-drone weapon, and powering AI’s growth

This is today’s edition of The Download, our weekday newsletter that provides a daily dose of what’s going on in the world of technology.

This giant microwave may change the future of war

Imagine: China deploys hundreds of thousands of autonomous drones in the air, on the sea, and under the water—all armed with explosive warheads or small missiles. These machines descend in a swarm toward military installations on Taiwan and nearby US bases, and over the course of a few hours, a single robotic blitzkrieg overwhelms the US Pacific force before it can even begin to fight back.

The proliferation of cheap drones means just about any group with the wherewithal to assemble and launch a swarm could wreak havoc, no expensive jets or massive missile installations required.

The US armed forces are now hunting for a solution—and they want it fast. Every branch of the service and a host of defense tech startups are testing out new weapons that promise to disable drones en masse. 

And one of these is microwaves: high-powered electronic devices that push out kilowatts of power to zap the circuits of a drone as if it were the tinfoil you forgot to take off your leftovers when you heated them up. Read the full story.

—Sam Dean

This article is part of the Big Story series: MIT Technology Review’s most important, ambitious reporting that takes a deep look at the technologies that are coming next and what they will mean for us and the world we live in. Check out the rest of them here.

What will power AI’s growth?

Last week we published Power Hungry, a series that takes a hard look at the expected energy demands of AI. Last week in this newsletter, I broke down its centerpiece, an analysis I did with my colleague James O’Donnell.

But this week, I want to talk about another story that I also wrote for that package, which focused on nuclear energy. As I discovered, building new nuclear plants isn’t so simple or so fast. And as my colleague David Rotman lays out in his story, the AI boom could wind up relying on another energy source: fossil fuels. So what’s going to power AI? Read the full story.

—Casey Crownhart

This article is from The Spark, MIT Technology Review’s weekly climate newsletter. To receive it in your inbox every Wednesday, sign up here.

The must-reads

I’ve combed the internet to find you today’s most fun/important/scary/fascinating stories about technology.

1 Elon Musk is leaving his role in the Trump administration 
To focus on rebuilding the damaged brand reputations of Tesla and SpaceX. (Axios)
+ Musk has complained that DOGE has become a government scapegoat. (WP $)
+ Tesla shareholders have asked its board to lay out a succession plan. (CNN)
+ DOGE’s tech takeover threatens the safety and stability of our critical data. (MIT Technology Review)

2 The US will start revoking the visas of Chinese students
Including those studying in what the US government deems “critical fields.” (Politico)
+ It’s also ordered US chip software suppliers to stop selling to China. (FT $)

3 The US is storing the DNA of migrant children
It’s been uploaded into a criminal database to track them as they age. (Wired $)
+ The US wants to use facial recognition to identify migrant children as they age. (MIT Technology Review)

4 RFK Jr is threatening to ban federal scientists from top journals
Instead, they may be forced to publish in state-run alternatives. (The Hill)
+ He accused major medical journals of being funded by Big Pharma. (Stat)

5 India and Pakistan are locked in disinformation warfare
False reports and doctored images are circulating online. (The Guardian)
+ Fact checkers are working around the clock to debunk fake news. (Reuters)

6 How North Korea is infiltrating remote jobs in the US
With the help of regular Americans. (WSJ $)

7 This Discord community is creating its own hair-growth drugs
Men are going to extreme lengths to reverse their hair loss. (404 Media)

8 Inside YouTube’s quest to dominate your living room                         </div>
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