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.