Terry Gross

When journalist Alec MacGillis started looking into McConnell's early politics, he says he was "startled" by how moderate the Republican used to be. The book traces McConnell's shift to the right.

Stewart talks about his future hosting the show known for its political satire. "It is unclear to me," he tells Fresh Air's Terry Gross. "The minute I say I'm not going to do it anymore, I will miss it like crazy."

Brian Krebs' new book tells the story of how two companies groomed spammers, and then destroyed each other. In the process, Krebs got access to documents that illuminated how cybercriminals operate.