I'm still personally certain that the first post-ww2 proliferator of nuclear warfare will be Israel. The US has too many international enemies to risk uniting them all at once, but Israel is proving that you can all but turn an entire society into glass and dust without provoking more than a concerned letter from the most "civilised" world leader.

EDIT: having read the article I can see he makes a very good, if concerning, argument towards Trump being the triggerman for this fucked up timeline.