Dave Davies

Tommy Caldwell & Kevin Jorgeson talk about their historic ascent of El Capitan in Yosemite. They climbed the most difficult face, the Dawn Wall, free style. After 19 days in 2015 they made it to the top. A new documentary tells their story.

P.W. Singer and Emerson Brooking say social media has been manipulated to fuel popular uprisings and affect the course of military and political campaigns. Their new book is LikeWar.

A talk with New Yorker staff writer EVAN OSNOS about the crisis at Facebook. Serious data breaches and the 2016 Russian disinformation campaign have put the company and its founder, Mark Zuckerberg, under scrutiny as the mid-term elections approach.