^ But like I pointed out in another thread, Hiroshima and Nagasaki (and other cities hard hit in WW II) were rebuilt in a world which still, in general, had its civilization and infrastructure. A full-out World War III would leave none of that intact. How could you rebuild a city if there is no infrastructure or technology or power left to rebuild it with? That wasn't a problem with II, but it would be with III.
When everything is destroyed, where do you go from there?