Sixty-eight years ago today the U.S. dropped an atomic bomb on Hiroshima. One of the things that always strikes me is that the Empire of Japan, having had a city obliterated with one bomb, did not then surrender. They waited until after the U.S.S.R. declared war on Japan, and after the U.S. dropped another atomic bomb on Nagasaki three days later. Then Emperor Hirohito ordered the military to accept the allies’ terms for peace. Even with that, some officers attempted a coup.