@georgeob1,
There's too much debt sloshing around the system, both here and in Europe, and not all of it is sovereign. Dexia (Franco-Belgian bank in process of asset liquidation) was a big player in US municipal securities as well - and in munis we expect 50 to 100 defaults in the next couple of years. The Fed is sitting on about 2 trillion of very, very, doubtful paper taken over from the banks as part of their bailout deals and can't do a QE3 to inflate the US economy, let alone the EU, and the IMF can't realistically commit more than half a trillion $ or so to supporting the euro as the other member countries will object.
Criticality was reached in the world financial system some time ago, and the only ones not recognizing it are politicians on both sides of the Atlantic - except for the Polish finance minister, who just gave a speech to the European Parliament saying that if the EU comes apart, he expects a war within 10 years (sic). Financial modeling of outcomes is impossible unless US money supply volatility gyrations stop and world debt levels come down >
> which they will do, one way (orderly) or another (a re-run of the 1930s). Did you know trading models complexity reached the stage where US regulators now send their market data to the nuclear weapons labs for analysis?! It's true:
http://www.lbl.gov/CS/CIFT.html