Before there was Oppenheimer there was Vannevar Bush

I just saw the movie Oppenheimer. A wonderful movie on multiple levels. But the Atomic Bomb story that starts at Los Alamos with Oppenheimer and General Grove misses the fact that from mid-1940 to mid-1942 it was Vannevar Bush (and his number 2, James Conant, the president of Harvard) who ran the U.S. atomic bomb program and laid the groundwork that made the Manhattan Project possible. Here’s the story.