Was Truman Justified in Dropping the Atom Bomb?

The order to use atomic weapons against another country has only been carried out once in the entire history of the world. The invention of nuclear weaponry impacted the worlds' arsenals in a way that no other weapon had; the A-bomb was a super bomb, the first in its class. President Harry S. Truman - unexpectedly thrust into the position of Chief of Command - was confronted with the raging World War II and the creation of this new mystery weapon. It is known to all that Truman gave the order to drop two atomic bombs over two Japanese cities on Aug. 6th and Aug 9th 1945, but what is not known is Truman's exact decision process leading up to the order. Did Truman have no choice but to order the use of these annihilating weapons, which leveled entire cities? What were the factors that made Truman risk the use of these revolutionary bombs?…