John Dickerson; Harold Evans; Alan Alda

John Dickerson of CBS News with a look ahead to former FBI director James Comey's testimony before the Senate Intelligence Committee. Sir Harold Evans, editor at large for Reuters and the author of “Do I Make Myself Clear?: Why Writing Well Matters.” Alan Alda introduces his latest book, “If I Understood You, Would I Have This Look on My Face?: My Adventures in the Art and Science of Relating and Communicating."