I don’t know but I saw this yesterday
$3.17 TRILLION wiped off global stocks so far this year
http://www.freerepublic.com/focus/f-news/3383435/posts
I'd think the countries that will survive, the economic meltdown, global chaos with "migrants" and the effects of terrorism will be those countries that can isolate themselves. The US? Perhaps the only way to do it is for a collapse of federal control, and some states will be able to take matters into their own hands.
How quickly could it descend into chaos, anywhere? Look at Crimea, Germany, Syria, Libya etc to answer that question.
Are we closer to "the sky is falling" than ever before? Are there too many things on the table? I wonder.