I have warned of the potential risk in these funds and municipal bonds as an asset class before.
The fact that no realistic action has been taken to address these issues, and that they may rotate into United States credit - that is, Treasuries, forcing big reductions in spending, is a serious problem.
Folks, the States are absolute pikers when it comes to this - The Federal Government is literally borrowing 40% of every dollar it's spending at the present time. This cannot continue indefinitely, and yet if it is pulled back GDP is going to instantaneous collapse by a double-digit percentage and the stock market will implode as profits go down the toilet immediately.
Is this a "sure things, short the farm" play? No. As we've seen the goofballs in our government are hellbent for leather on continuing to play Ponzi, borrowing ever-more in a furious (although ultimately futile) attempt to prevent recognition of the fact that we simply do not have the final demand and cannot manufacture it via borrowing on a durable basis to support our claimed "output" and "profits."
Bernanke, Obama and Congress think they're Khan - and invincible.
They're all wrong - The Market is in fact Captain Kirk.