Back then these two bombs stopped the war. It silenced Japan. It is a very different situation now days, as many have the technology of these bombs. If the US cities get hit now, a nuclear war is probably what's going to happen, and it surely won't silence anyone without them pulling the trigger as well, IMO.
No, I'm not. But that doesnt change the fact that it had stopped those crazy Japs and blood thirsty Nazes to take over the EU.