Which would be quelled in short order.
I am not so sure.
More importantly, LTC Thomas Kratman is not so sure. These are some articles on what a US Civil War would be like:
http://www.everyjoe.com/2015/01/12/politics/breakup-of-united-states-terrible-idea/#1
http://www.everyjoe.com/2015/01/26/politics/breakup-of-united-states-political-alignments/