Was Truman justified?

Truman's decision to drop the bombs on Japan was a long and difficult task. Though there were several options, none of them were a definite choice which would save not only resources and time, but also casualties. Japan was well-informed of the United States' option of dropping the atomic bombs, yet its military refused to cooperate and surrender before innocent lives were taken. Dropping the bombs was immoral and inhumane, but at that moment in time it seemed like the best option as it would get Japan to surrender, as well as securing an Allied victory for World War II. Truman's decision was truly a difficult one, and not many people can say that they had to make a choice like that which would subsequently alter history and harm innocent civilians. Though he may receive much criticism as well as acclaim, he made the best possible choice he could have.