AZ, I agree.
I say, let it ride. Dissolve Fannie Mae and Freddie Mac, stop government intervention in mortgages altogether. Take the pain; there's no way out anyway. I'll take a crash, followed by the inevitable recovery, over prolonged bad times created by this sort of crap. What are 300,000,000 Americans going to do, anyway? Just sit there and not do anything, not buy anything? Where will people live, what will they eat? The economy isn't a magic thing the government creates; it's what happens spontaneously when everyone does what they can to earn money, and spends what they can to get stuff that's worth buying as far as they see it. The economy won't disappear if the government backs off; after the initial jolts it can come back healthier.
This isn't a failure of the market; it's something that people predicted in the late '90s already -- when the pressure to loan to people who couldn't repay, combined with empty promises, began.