When Jason Fagone and Cynthia Dizikes of the San Francisco Chronicle began reporting about the cleanup of radioactive former military sites around the Bay Area, they thought they'd be writing a few long, deeply reported stories, and this podcast would accompany them in documentary form. But their reporting, as well as that of other reporters, has resulted in breaking news. So Toxic will now be a weekly discussion of this developing story. This week: A review of what's been reported to this point.

Learn more about your ad choices. Visit megaphone.fm/adchoices