Bombs are as old as hatred itself. But it was the twentieth century--one hundred years of incredible scientific progress and terrible war--that brought forth the Big One, the Bomb, humanity's most powerful and destructive invention. In The Bomb: A Life, Gerard DeGroot tells the story of this once unimaginable weapon that--at least since 8:16 a.m. on August 6, 1945--has haunted our dreams and threatened our existence.