EB,

I look back at 1992 when the political catch phrase was "Its the economy, stupid".

Will the calamity be "home grown terrorists"? What about a major economic meltdown? Like a state defaulting?

The home-grown terrorists on the left and right have been around for some time. The "right" seems to target individuals and limit collateral damage. (Okay, there are exceptions -- OK City bombing.) While the left has been more prone to grand displays against private property where the chance of collateral damage is greater.

Overall, I think a more pressing issue is a major default by a state due to budget issues. One of the bigger and more risky economies is California. Is California "too big to fail"?

What better way to have a conflict and have "big government" step in and save the poor people?

Will the feds take over a state like they have private enterprise?

Are the dominoes in place for the spectacular fall?