There are no words in the English language to describe the evil behind this unforgivable atrocity. Look at this! 100 000 casualties!
...oh, wait, cough, my bad, that's Manila, not an a-bomb. But look here!
...wait, that's Dresden. Here we go!
...whoops, sorry, wrong again, that's Berlin. What about this?
...nope, that's Stalingrad.
Er, you were saying?
Seriously, though, why are we even discussing this? We're talking about a bomb that prevented an invasion and saved countless lives. Compared to the other butchering going on during WWII, this was nothing out of the ordinary, except, of course, that, say, the Battle of Manila or bombing of Dresden didn't end the war and spare millions of lives.
I wager that the only reason people care is that they used atomic bombs. Had they levelled Hiroshima and Nagasaki with incendiary bombs, no one would've cared less.