When North Korea targeted security researcher Alejandro Caceres, he did something Americans aren’t supposed to do: he struck back — and knocked the country’s entire internet offline. Now, a new Trump administration memo is raising the possibility that, under special circumstances, Americans could strike back at cybercriminals — legally.

Journalist Jason Rezaian spent a year and a half in an Iranian prison, cut off from the outside world. So when Iran shut down the internet across the country for 88 days during the early weeks of the war, he had some idea of what that kind of isolation felt like. And he saw something else: just how closely the internet and power are now intertwined. Iran understands that. Rezaian thinks the U.S. should too.

China builds bridges, high-speed rail and cities at a pace the United States can barely imagine. Economist Dan Wang, author of Breakneck, says there’s a reason: China is run by engineers, while America is run by lawyers. That difference explains a surprising amount about how China works — including what happens when you try to engineer a society.

Millions of people around the world fell in love with Genshin Impact. The Chinese video game was fun. It was beautiful. And it was approved by the Chinese Communist Party. We take an updated look at how China’s booming gaming industry became a powerful way to export culture — without making it feel like an export.

This year, Iran shut down the internet for more than three months, cutting millions of people off from the world — and from each other. We go inside Iran’s internet shutdown and look at why that isolation wasn’t just a consequence. It was the goal.

Inside Iran’s viral Lego videos mocking Trump and Netanyahu — and how AI is turning propaganda into entertainment.

Turns out, driverless cars don’t like fireworks. On the Fourth of July, a hundred thousand people poured out of San Francisco’s fireworks show at once. Robotaxis in the area went haywire. Some froze in intersections. Others drove over live fireworks. And it made us think of an earlier conversation we’d had with NYU professor Gary Marcus about what happens when machines trained on a predictable world encounter the real one.

AI models are tested in sandboxes — sealed-off environments designed to keep them away from real systems. This summer, two models found a way out. In this Cyber Monday crossover with WAMU and NPR’s 1A, we go back to one of the earliest hackers who understood something we’re still learning about technology: build a system, and someone will inevitably test its limits.

It was a tiny water authority in rural Pennsylvania. A hack that barely made national news. Today, as suspected Iranian hackers target water systems across the country, we return to that story. What once looked like an isolated incident, now looks like a warning. 

In a mass shooting, doctors have seconds to decide who lives and who dies. Could AI help make those decisions? We return to a story about a DARPA program asking where medicine ends and technology begins.