The idea of America has always encouraged apocalyptic visions. The 'American Dream' has not only imagined the prospect of material prosperity; it has also imagined the end of the world. 'Final forecasts' constitute one of America's oldest literary genres, extending from the eschatological theology of the New England Puritans to the revolutionary discourse of the early republic, the emancipatory rhetoric of the Civil War, the anxious fantasies of the atomic age, and the doomsday digital media of today. For those studying the history of America, renditions of the apocalypse are simply...