atom bombs

I think that the atom bombs dropped on hiroshima and and nagasaki were unnecessary. They could have easily have dropped a bomb on less populated area or on a more military populated area. Most of deaths were civilian and pointless. Truman could have dropped the bomb on the tokyo harbor. I feel that this would have been a sufficient show of the bombs power. Also at the time the bomb was dropped the japanese were about to give up anyway, and yes the americans did give the japanese the option to surrender but the japanese also didn't get enough time to respond. The bomb cause untold damage there are still areas which are too radio active for people to live and in total about 250,000 people. It was a tragedy that could have been avoided with some better judgement and planing.