Re: 8/6, 7/7 and 9/11
no, it simply was not possible to avoid casualties.
Arguably the bombing of Dresden was worse, as it was done with conventional bombs over weeks of time. Traditional bombing of Tokyo would have yielded far more casualties.
The real point of Nagasaki and Hiroshima is an attempt to rewrite history. The world is far better off with the Pacific free of Imperial Japan. To try to focus on two bombings takes them out of context, and forgets the other far more heinous aspects of the war.
And ultimately you could argue that we should all be using swords and rocks and that any advance in warfare is unfair. Get over it. A bomb is a bomb is a bomb. They all kill. For the most part the US has pioneered the use of "Smart" precision guided weapons. You may mock the term, but one bomb now does the job that 50 bombers did in World War II. Those advances save lives. But if we thought that dropping another atomic bomb would end another war as brutal and deadly as the war in the pacific, would we? Probably. What's more, if your country had the same decision to make, the loss of a million soldiers battling the Japanese on their home territory or ending the war immediately by dropping two bombs, your country would be making the same exact decision.
Dropping those bombs does not make us evil. It makes us smart and deadly. We win. It sure made the Russians think twice about attacking us over the next 40 years.