It would take the terrors of the 1962 Cuban missile crisis, and the massive Soviet buildup that followed it, before an American administration would propose, in the 1970s, a serious and acceptable arms control agreement. But by then tens of thousands of nuclear warheads had been built. Oppenheimer and many of his colleagues always blamed Baruch for this missed opportunity. Acheson angrily observed later, “It was his [Baruch’s] ball and he balled it up. . . . He pretty well ruined the thing.” Rabi was equally blunt: “It’s simply real madness what has happened.”

