A real tale better than any fiction writer could imagine - the story of the man who provided the Soviets with the basis of the bomb. While not sympathetic to the actual actions, the author does do an excellent job of describing historical context in which Fuchs ended up making his decisions. Fuchs had been driven out of Hitler's Germany due to his communist leanings, and his support for left wing causes was well known when he went to Los Alamos. An equally intriguing aspect of this book is the story of the delay in charging Fuchs and the choice of punishment - all driven by politics not ethics. An excellent book on the history of the bomb. ( )