My final post on the matter:

For all those romantics who believe that war "before Hiroshima" wasn't so bad, let me remind them that World War I was entirely "conventional," but still cost about ten million lives.

And World War II, also entirely "conventional" before Hiroshima, took another fifty million. Zyklon-B, the gas used by Germany to carry out the Holocaust, was developed in peacetime as an insecticide....