non-proliferation is a pipe dream. It's unethical to deny countries like Iran the bomb. They deserve the bomb just as much as we do. What gives white man authority over the bomb? Things will be better when Iran has the bomb. It's like Americans having lots of guns. We are far safer society with the number of guns we have, almost no one gets shot...

Okay, bad example.
I know my post seems contradictory, but I see us only being able to delay other countries getting the bomb, eventually everyone will have one. And like the gun situation in the U.S., someone will eventually use one. Nuclear war is inevitable. But I expect it will be a limited nuclear engagement between small countries (most likely Iran and Israel), and have no real effect on the U.S. Regionally it will be devastating, however. I just don't see a large scale nuclear war between world powers happening any time soon.