Was dropping the atomic bomb on Hiroshima and Nagasaki a good decision?

Atomic Bomb Exploding in Nagasaki (August 1945)

Why? Why not?

Photo Source: Hiroshima and Nagasaki. (2014). The History Channel website. Retrieved 2:32, January 28, 2014, from http://www.history.com/photos/hiroshima-and-nagasaki.