All of the largest migrations in human history have occurred in either times of major economic downturns and/or war induced flight. Many would concur that Alaska is a country all on to itself. Would be ironic though, if a major Middle Eastern war kept Alaska oil prices high, thereby negating a climate for a mass exodus to occur. 

Always hope for the best and  be prepared for the worst and don't discount the things you don't feel can happen. After all, it's the human condition to feel it won't happen to you.

And yes, I have read the bill.