NPR’s Iraq correspondent, Deborah Amos discusses the displacement of hundreds of thousands of Sunni Muslims uprooted or exiled by the conflict in Iraq who have spread across the Middle East, unbalancing that sensitive region. Her book Eclipse of the Sunnis: Power, Exile, and the Upheaval in the Middle East explains the impact of that great migration from Amman to Beirut and Damascus, and how this new population of stirs up the historic conflict between Sunni and Shia.