The Download: The Pentagon’s new AI plans, and next-gen nuclear reactors

This is today’s edition of The Download, our weekday newsletter that provides a daily dose of what’s going on in the world of technology.

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

The Pentagon 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...