The final phase of the civil war in Syria is descending to new levels of agony as Syrian and Russian jets reduce a suburban of Damascus to rubble, forcing 400,000 people to live underground. On the next “Truth, Politics and Power,”  Neal Conan refreshes “How Civil Wars End.” Listen back to groundbreaking comparative analysis of the causes, resolutions and duration of civil wars, to a conversation with Deborah Amos on the history of the conflict in Syria, plus historian  Annette Gordon Reed on the long legacy of the civil war we know best…our own.