In retrospect, it seems completely logical that once a weapon is invented, it will be used. But we forget the blindness and obfuscation of the late twentieth and early twenty-first centuries, when the most destructive weapons were regarded as walls of protection, and when the horror of Armageddon was seen as a deterrent no sane society would risk. But the nations were not sane—rational, composed, aware, but not sane. In each nation, the arsenal included potent distrust and even hatred. . . .

