of the atomic bomb on Japan. "WE are the only nation mean enough to use it", "Look at all the poor people we killed with it", etc. ad bullcrap. An awful lot of these people seem to care nothing for the death toll an invasion would have brought(they also seem to write off what Japan had done in every country they stomped over, but that's another gripe), just that "WE are the only country that has been unfeeling enough to actually use one of these weapons!"
A year or so ago I ran across Downfall: the end of the Imperial Japanese empire. Interesting book; takes the information used to plan the invasion and updates it with stuff that had not been declassified until a few years ago. Short version: the Japanese had a lot more troops in reserve in the home islands than we knew, well-supplied, and a lot more aircraft held back. And since there are only a few places you can make a massive amphibious invasion, they had prepared/were working to upgrade an in-depth defense plan with prepared positions. All of which means the toll on Allied troops invading would have been much worse than calculated; and the toll on Japanese, military and- especially- civilian, far worse yet.
I realize for the serious 'No Nukes No Matter What' people it won't matter, but it does to a lot of others. Dropping the bomb was a big decision, and I'm glad we did. It ended the fighting sooner, with much lower casualties. And if a lot of boobs can't deal with that, that's too damn bad.