Alarms are being sounded again about the risks of artificial intelligence after hundreds of OpenAI's autonomous agents violated restrictions and hacked into another company without being told to do so. Anthropic and Meta have had similar events with their own AI agents going rogue. William Brangham discussed what this moment signifies with Gary Marcus of Marcus on AI.

There have been several promising developments lately in cancer research and treatment, including a new drug approved by the FDA this week for advanced pancreatic cancer. William Brangham reports.

Canada imposed retaliatory tariffs against the United States as the two neighbors slide toward an all-out trade war. The tariffs will hit a range of U.S. products, from industrial goods to everyday items. At the same time, President Trump is threatening Canada with even steeper tariffs. William Brangham reports.

The proposed $111 billion merger between Paramount and Warner Bros. Discovery hit a roadblock after California's attorney general and 11 other states sued to stop it. That move was followed by Paramount Skydance CEO David Ellison threatening to take his operations out of California if the deal is not approved. William Brangham discussed more with Matthew Belloni of Puck News.