In “The Dark Side,” author Jane Mayer weaves a seven-year narrative detailing what we know and don’t know about the decisions made while pursuing terrorists after the coordinated terrorist attacks of September 11, 2001. Mayer focuses on roles of Vice President Dick Cheney and his chief-of-staff since 2005, David Addington, and infers details from a secret 2007 Red Cross report that says the prisoner abuses at U.S. facilities constitute war crimes. Guest: Jane Mayer, author of ?The Dark Side: The Inside Story of How the War on Terror Turned Into a War on American Ideals.? She’s also a staff writer for The New Yorker