Riots? Martial Law? You have got to be kidding. This reeks of statist fear-mongering.
Not even the great depression brought on Martial Law.
Unfortunately the situation is very different now in some critical ways which could indeed lead to riots and martial law.
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The only thing the socialism knows how to do at this point is tax and spend.
There is no place for capital to run to. The economy is shifting to the Knowledge Age where capital is less important than specific knowledge and small world-changing focused opportunities.
So you are going to have a very confused and pissed off society as this accelerates 2016ish.