Bill Gross started the concerns last week with AAA credit concerns. This has sparked a 4 day selling spree that has gone through the roof today. Servicers, originators, banks, insurance funds, hedge funds, sovereign wealth are pulling their fund out for what looks like a breather. Things should return back to normal once all all the sellers have their orders filled. It's a black Wednesday for mortgage backed securities for sure. It could be weeks or months before it bounces back if it even does. One huge factor is the naivete one must possess to think that the current state of the markets will not be addressed in a "Federal" manner.