My prediction for the "day after".
Romney wins a close election. The usual "wack jobs" come out of the woodwork and claim "Romney "stole" the election and the Republicans are going to cut the government re-distribution of wealth to the "poor" ." All the "Democrat dependents" suckling at the Government teet, believe the propaganda and hype and begin rioting against the loss of their "Government Benefits".
Obama tries to declare Martial Law before he leaves office in an attempt to hold off the January 20th 2013 change of power.
More riots ensue as a result of the Obama power grab.
The SHTF!
See "my post" about the worst case scenario for another approach.
The Worst Case Scenario | Paranormalis