Metallurgical Laboratory

So they thought, "We have to build a bomb because otherwise the Germans will get it and use it." By the time Germany surrendered in May of 1945, in that summer, people realized that it was going to be used on Japan, and I don't think these scientists had ever really thought through that part, even though the Japanese war was, for America, bloodier than the European war.

Oppenheimer actually tried to throttle this opposition, which mostly came from the part of the Manhattan Project, the so-called Metallurgical Lab at the University of Chicago.

So Oppenheimer, he never regretted the use of it.

He did think afterwards that there had to be some regulation of nuclear weapons, and that's part of the reason for his downfall, is that he, while he never, as I say, never re- never seems to have changed his mind about the rightness of dropping the bombs, plural, he did think there needed to be international control of atomic energy, and he totally failed in that attempt, and that's where the moral scruples or the moral side of him comes out.