To address the threat of an atomic-armed Soviet Union during the early days of the Cold War, President Harry Truman approved the Alert America exhibit as the most effective way to convey the destructive power of the atomic bomb and to encourage participation in civil defense. Following its debut in the nation's capital in January 1952, Alert America, promoted as "The Show That May Save Your Life," traveled in three separate convoys to more than eighty cities considered most likely to be bombed, and garnered unprecedented support from elected and civic officials, the media, the military, private industry, and myriad organizations. This is the first book to examine the scope and impact of Alert America, which has been largely overlooked by historians. Also included are resource materials providing insights into the government's overriding objective of preparing men, women and children to survive an atomic war.