Summary: Pulitzer Prize-winning author Joby Warrick has written a new book, "Black Flags: The Rise of ISIS" that traces the roots of the terrorist state back several decades. He looks at the founder: Abu Musab al-Zarqawi and the current leader and caliphate Abu Bakr al-Baghdadi. In this special edition of the Townhall Review, Hugh Hewitt spends an hour with the author discussing ISIS's birth and how it might be defeated.
