What do new nuclear reactors mean for waste?

March 18, 2026
MIT Technology Review Explains: Let our writers untangle the complex, messy world of technology to help you understand what’s coming next. You can read more from the series here. The way the world currently deals with nuclear waste is as creative as it is varied: Drown it in water pools, encase it in steel, bury…

The Pentagon is planning for AI companies to train on classified data, defense official says

March 17, 2026
The Pentagon is discussing plans to set up secure environments for generative AI companies to train military-specific versions of their models on classified data, MIT Technology Review has learned.  AI models like Anthropic’s Claude are already used to answer questions in classified settings, including for analyzing targets in Iran. But allowing models to train on…