On that date, in 1945, in order to bring the Empire of Japan to its knees to save further bloodshed, The United States of America dropped the first thermonuclear fission bomb on Hiroshima, Japan. This action changed the world. Some feeble minded marxists and socialists have been condemning for this "war crime." I sincerely believe that the only "crime" involves was that the critics parents weren't residents of Hiroshima at the time. These progressive types never, never consider any consequences of their own actions. Like their college professors, they only consider what they wanted to happen.
As a matter of fact, this much criticized action brought the world a relative peace that has lasted 70 years so far. In the time span of WW-I through the end of WW-II, over twenty million civilians and military were killed by war. Since then, except for Muslim murders, I don't think we have passed a million dead. Looks like a pretty good trade-off.
In my earlier life, I went to a school that operated the first commercial nuclear electricity generation station. I didn't participate in that program, but my professors did. We were overrun with Chinese and Indian students trying to glean any information they could, in spite of the patriotic professors, who had to hide everything from them. Next was the Army, where with what background I had, I participated in writing one of the first nuclear warfare operating and emergency procedures. After another year, I went to the Army Combined Army School for Chemical, Biological, and Nuclear battle.
After parting company with the Army, I obtained my RSO (Radiation Safety Officer) license from the AEC. I trained trained and performed RSO duties for many companies. I designed and implemented a program to transition the new computerized radiography to the Air Force, with some cross cooperation with the Navy.
Finally, I wish to drive home the FACT that in nuclear war, the radiation is only a small part of the problem. It is the blast that is the big killer. So to sum up, not all unintended consequences are bad. This one brought us many decades of peace.