The issue here is that what looks to be the right thing to do from an economic point of view may be the wrong thing to do from a moral point of view. That's why OP said he didn't know the correct answer. I agree with him - there probably is no correct answer and whatever action is taken is going to hurt a lot of innocent people.
Anything to do with massive bailouts and subsidies stolen from people through taxation is wrong from the very core. The correct answer is to achieve a better world through peace.
There is no option for bailing out ordinary Americans. That's only for the rich. And saying the correct answer is a better world though peace is a cop out. The problem is real and needs a decision. What would you do? Reduce the underwater loans and let the people stay in the houses or not?
So you would say that the banks should foreclose on those loans and kick the people out.
That's a perfectly valid decision. It's probably the morally correct one from the point of view of the people who opted to rent instead of buy.