Victory over Japan did not depend on nuking two Japanese cities---most of Japan's cities were already firebombed to ashes. Japan was helpless militarily and was negotiating for surrender long before the WMDs were dropped on its civilian populations. It was Truman's intention to use the bombs as a warning to the USSR. The outstanding consequence of the Hiroshima and Nakasaki nuclear holocausts was the Cold War. Now we have perpetual war and the ever growing probability that we are headed for a world nuclear war.
Suspect Bangkok bomber arrested, found with possible bomb-making materials (Reuters)