"One of the most interesting, exhilarating, and informative aspects of the presidency was my time with the CIA analysts and my PDB briefers." -George W. Bush, correspondence with the author, November 2012.Every day, a member of the CIA presents to the president a report detailing the most sensitive activities and analysis of world eventsThese can range from the behavior of America''s allies to the maneuvering of its adversaries, from imminent dangers to long-term strategic opportunities, and are often based on the words of highly placed sources or the interceptions of astonishingly nimble technologies.This report - for the president''s eyes only-forms the basis of the president''s assessment of US intelligence and strengthThe story of the President''s Daily Brief-the PDB, in the jargon-is a window into the character of each president and his administration, and the degree to which his worldview and policy was shaped by the information from the security services.It is a story that could