The perennial "Bash the US for dropping the atomic bombs" really just needs to stop. You're judging actions that happened 70 years ago by your standards you hold today. The question you need to be concerned over is, "What would we do in this day and age faced with a similar situation?"
All that said, I'm not judging any actions, I'm not sure where you got that from. The GP said that the remarks made by the pilot were "unassailable". I just pointed out that that's nonsense because while it's a sane argument, there's also a sane argument against it. It's been many years and there's been no US bashing in this thread up until now, but absolute statements on the morality of what happened, in either direction, just don't seem to make sense anymore.
Plenty of people in the day opposed it as well. Here are quotes from Dwight Eisenhower, Admiral William D. Leahy (Chief of Staff to Presidents Franklin Roosevelt and Harry Truman), Herbert Hoover, General Douglas MacArthur, etc: http://www.doug-long.com/quotes.htm