Regarding nuking Japan, I disagree, I don't think "they" deserved it. Innocent people were knowingly murdered, because that's what happens in a war. Murder.
A nuclear bomb is an indiscriminate killer, it doesn't know to only kill bad guys in uniform on the other team. What was known, was civilians would be devastated. If the shoe was on the other foot, the USA would call that terrorism.
Many, if not most of the people nukes killed weren't soldiers. They were civilians, women, children, babies. Innocent people. Punished for the acts of their "leaders". Fried, at home, at school, in the street.
As far as "they started it", well no the Japanese civilians didn't start it. Some psycho Japanese military types attacked Pearl Harbor, (which, ironically the psycho USA military types had stolen from the natives a mere 1/2 century prior).
It's quite possible FDR knew it was gonna happen and WANTED Pearl Harbor to happen, to justify entering WWII. I lean in that direction.
If the Hawaiians had nuclear capability in the 1890s when they were being attacked ("annexed) and lobbed a couple nukes at American cities that vaporized thousands of innocent people....
Would that be okay if they vaporized civilian Americans who had nothing to do with the annexation of Hawaii?
If my co worker cheats me, should I burn his neighbor's house down ? Beat up his brother or some guy that looks like my co worker? I don't think I should hold anybody responsible but the one who cheated me.
Peace.