http://en.wikipedia.org/wiki/List_of_Japanese_war_atrocities
War is always hell. I've personally been there. The entire purpose of fighting a way is to kill the enemy. Those that tell you anything different are lying to you. The purpose of a war is not to kill civilians or helpless prisoners. The Japanese refused to surrender so they were killed. We did not round up Japanese civilians and kill them but the Japanese did exactly that in many different countries.
I do now know how anyone can make the claim that we treated them badly as compared to the way that they treated every perceived enemy.
There is a word that applies, the word is “present-ism” it is when you look at history through today's glasses. It doesn't work. After seeing what I have seen, listening to the stories from survivors, after reading about the tens of thousands of women who were forced into sex slavery I'm not inclined to feel sorry for any Japanese troops during WWII. Read my tag line. I do wish that those who went before me had their hands on some of the weapons systems I have enjoyed. I wish I had been there to operate a few of them. Soldiers are trained to kill their enemies. This is how one lives through the experience. (don't be too shocked dead people can't kill you) Most of us take it as a point of pride to be very good at our jobs. Maybe Tom Hanks needs to go on a speaking tour to China. There are a few million people over there who have some memories of the war. As to our view of present day terrorists. You can't change them. If you catch them and put them in prison sooner or later they get out and they are still terrorists who want to kill you. Sooner or later you will have to kill them to stop them. This is just a very simple fact. Where the media gets this all messed up is that they try to make everyone we are fighting in Iraq and Afghanistan out to be terrorists. They aren't. Many of these folks can be defeated and reeducated or turned and payed off. BUT a true terrorist must be killed. That is the only effective way of handling them. The realities of war are never pretty. I have family in the big sand box of war right now. Some of our guys are dieing to give the civilians the benefit of doubt. WAR=DEATH. Nothing anyone can do about it.