I am not judging Einstein's character when I say this, yet fitall is correct part of his review. Einstein was indirectly responsible for the Bomb. He warned the president about the danger of Germany building an atomic bomb. An in turn scared the US into building one for themselves. Plus without his contributions in the fields of physics, the bomb would have not have been built in time for testing on Hiroshima and Nagasaki. But who knows what would have happened if that were the case?