What if … we’d just let the Japanese go ahead and surrender? It was obvious, it was coming soon…no matter how bad our brass hats and imperial brains wanted to see what their own mass murder might achieve. Our nation matched Hitler’s style in a matter of seconds, not years.
I presume most readers here weren’t around and contemporary to Hiroshima and Nagasaki. I’d suggest you read John Hersey’s HIROSHIMA. A prizewinner in its day … for good reason.