Espionage is a whole nother book... (Score 2, Informative)

Rhodes didn't discuss espionage much in "The Making of the Atomic Bomb", but his follow-up, "Dark Sun", discusses it extensively. (Its subjects are the Soviet nuclear program, and the development of the hydrogen bomb, which really can't be discussed in detail without going deeply into intelligence and counter-intelligence).

It also takes a good hard look at the leadership of the Strategic Air Command, in the 1950s, which at times came close to advocating a preemptive nuclear strike...