Green's latest novel, 'Turtles All The Way Down,' is about a teenage girl with Obsessive Compulsive Disorder. The author spoke with Terry Gross about his own experience with OCD in 2017. "It starts out with one little thought, and then slowly that becomes the only thought that you're able to have. It's like there's an invasive weed that just spreads out of control." Also, linguist Geoff Nunberg considers how the word "algorithm" has come to stand in for the power that technology wields in our life. And TV critic David Bianculli reviews the Showtime mini-series 'The Loudest Voice' about Fox News creator, Roger Ailes.