This week The Cipher Brief's Executive Producer and Reporter Leone Lakhani speaks to David Priess, a former CIA analyst and author of The President's Book of Secrets, which shares the untold stories and historical perspectives of the president's daily intelligence briefing. Press, who served during the Clinton and George W. Bush administrations, once worked as a daily intelligence briefer for the CIA himself. He speaks to Leone about the types of details that go into the President's Daily Brief.