Examines the new, apocalyptic or world-ending violence that reached American shores in its most tragic form on September 11, 2001.  Discusses the history of apocalyptic movements (such as the Crusades); of violent cultic groups from the Middle Ages to the contemporary world (such as Jim Jones); of fundamentalism in the major religions of the world and how and why it so often gets connected to terrorism; and of the way nuclear, biological and chemical weapons have changed our psychological landscape.