In the grand tradition of Congress they are lining up to bayonet the wounded in the Wall Street mess. If they'd just get out of the way and let the dumbasses, oops, I mean geniuses, on Wall Street suffer from their mistakes, it will all be fine in the long run. Congress is really good at shutting the barn door after the horses get out. I'm sure they will come up with some wonderful regulations to fix last years problems, and in the process compound the problems going forward.
But it never fails, they let the market work when it succeeds but can't suffer the ultimate failures. Business is good at creative destruction. Things that don't work fall apart, and those things that do work, move forward. All we need now is some massive federal intervention and regulation to ensure that the failures stay in place.
Economics is probably the least understood thing in DC. Politics will screw up economic creativity (with creativity comes destruction) every time.