Atomic Bomb. *247*

Should the Atomic Bomb (http://dictionary.reference.com/browse/atomic+bomb) have been dropped or not?
Many problems arose when the question of the atomic bomb hit the news.
When looking at the facts, there are so many reasons why we shouldn't have dropped the Atom bomb. The main reason is the Japanese WERE trying to surrender to us. Yes, the did want to have conditions,  but it wasn't appeasement. It wasn't anything close to how we treated Hitler, for example. They were trying to surrender and we still bombed them...twice. Also, after we dropped the atomic bomb, WE GAVE INTO THEM! We let them keep their leader! So the United States basically dropped the atomic bomb to be arrogant.
From dropping the atomic bomb in Nagasaki and Hiroshima, America killed 220,000 Japanese civilians. Really...
Not to mention nor forget that American had just put about 120,000 Japanese-American's in retention camps after Pearl Harbor, accusing them of being spies and taking everything they had.
I understand that America wanted some sort of justice after Pearl Harbor, but this was not the way to go about it at all.
ESPECIALLY WITH THE JAPANESE TRYING TO SURRENDER!!!!
Maybe I don't know the full story, but this is what I am being taught in my US History Class.
America murdered. Instead of being the bigger country and being the Superpower nation that we became to be during World War II, we failed and we murder.
What happened to not fighting fire with fire.