He was a scientist, he told a reporter disdainfully, not an “armaments manufacturer.” Not every scientist, of course, felt this way. Edward Teller was still promoting the “Super” to anyone with the patience to listen. When Teller asked Oppenheimer to urge that research on the Super continue, Oppie cut him short: “I neither can nor will do so.” It was a reaction that Teller would never forget—or forgive.

