What's the big deal about dropping the bomb? Yes, many people died, and there was much destruction, but the fire bombing of Tokyo was far more devastating in lives lost and property damage..........does it make you revisionists feel better that it took many bombs to do that rather than one?
What's the difference? I see none. It is ridiculous to think that it would have been better to invade Japan rather than drop the bomb. It's easy to see what the long term implications are, but the leaders then didn't have the luxury of hindsight.
With the battle for Okinawa fresh in their minds, where most Jap soldiers died rather than surrender, the military was surely glad to find a way to end the war without a land battle for Japan itself.
Think of it this way: Since the Japanese were going to resist with soldiers, women, children, etc, then it's likely that hundreds of thousands of civilians would have been killed by our soldiers in an invasion, along with hundreds of thousands of our men.
If you had a way to kill maybe 70-100,000 Japanese and ZERO Americans, possibly ending the war, wouldn't you do it? Horrible choice, but given the alternative, I'd give the order, no hesitation.