How about nice documentation of the Tokyo War Crimes Tribunal, which was a puppet trial and they executed people for 'unprovoked war' and 'aggressive warfare' which even today isn't a war crime.
This is not to mention that the US military protected Japanese scientists of Unit 731 who knew they were committing war crimes by exposing civilians to bacteriological and chemical weapons, which after WW1 were considered to be war crimes. None of the people who actually committed a war crime was prosecuted by the American governments, they were pardoned and protected so the US military could get their research.
I believe that Hiroshima and the completely pointless bombing of Nagasaki should be shown in context. In that context it should also be shown that the US military exposed innocent people to the most cruel deaths humanly imaginable.
I'm sorry but the inhumanity of Unit 731 is far outweighed by the US protecting them.
This isn't to mention that the Hiroshima and Nagasaki bombings actually killed allied POWs and even Japanese-American citizens. That exposure to extreme gamma radiation causes scar tissue to separate from ordinary tissue and any injury from even decades before to reopen and help the person bleed to death, that's if they don't die from shitting out their bowls (literally) or dying from the flu as the radiation destroys their bone marrow. This not to mention the Atomic Bomb Casualty Commission refusing to give medical aid to the survivors of the bombing so that they could get better results.
Oh and how about the US military personnel who mutilated Japanese corpses and took home trophies from corpses. The civilian fear of this was so great in Japan that it caused the mass suicides of Saipan and Okinawa.
My personal opinion on the war is that both the US and Japanese committed enough crimes between them that there should never be forgiveness over the events. It's a great shame that the US military didn't get punished for its war crimes, just like the majority of the Japanese military didn't and just like the majority of the German military didn't.
War is inhumane and full of atrocities, just like what's coming out of Iraq and Afghanistan. The simplest way to avoid war crimes is to simply avoid war.