To Fuckitall, Yes it was his mind that brought the Atomic bomb but It wasn't his decision to use it. He wrote a letter describing the devastation it can cause and requested that it not be created. Robert Oppenheimer was put in charge of making the bomb and Truman used it. Back then Japan was so horrendous that China still isn't with best terms with Japan over what they did. Truman decided that the US has lost enough and went ahead with the bombs. Now its your opinion to say it was right or wrong but the point of war is to win and Japan had done enough wrong doing and torture to the world at that time. Japan is now a great country.
