Famous TV presenter Igor Prokopenko talks in this book about the most significant events related to the creation of nuclear weapons. This will surprise you, but many of the most important facts that either put the world on the brink of nuclear war or prevented the atomic apocalypse were still kept under the strictest secrecy and for the first time they are discussed in this book. Why did foreign scientists so readily contact Soviet intelligence? Why did a policeman at a train station in Albuquerque give to take out the blueprints of the atomic bomb, although he kept them in his hands? What was the Soviet intelligence network in the West and how did the ordinary day of the illegal?