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

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