A suicide attack at a concert last night in Manchester, England killed more than 20 people. On Tuesday, the Islamic State terrorist group claimed responsibility. The attack comes as President Trump is on his first official visit overseas including stops in the Middle East where he has called for peace. Professor Victor Asal of UAlbany’s Rockefeller College of Public Affairs and Policy is in the studio to discuss terrorism and related topics. Professor Asal heads UAlbany’s Project on Violent Conflict. WAMC's Alan Chartock hosts.