Not with this Trump Republican administration, anyway. There were some treaties, that had some effect. Not true. I just assign responsibility for stuff to the people on record as most responsible, is all. Unlike your ignorant bs: Clinton had almost nothing to do with that. The Republican Party was a central player and agent. US isolation, which hasn't been seen and probably is not possible in the nuclear age, would not stop proliferation. Treaties and agreements are necessary. Putin is of course abetting proliferation. Human civilization, not the species. Even total nuclear war involving every major power would probably not kill everyone. Trump's and Putin's added extra risk threatens your freedom and prosperity and probably life - not the species.