The wallstreet debacle is directly related to the government trying to buy votes through "low cost housing"- code for making loans to people who couldn't afford them or had terrible credit, and SURPRISE have defaulted on the loans.
Unfortunately, because there is far more money on computers than in circulation -[which is GOOD, as if there was the same amount of money in circulation it would be worth $0], the government is now having to prop up the companies. If not, the notes being called on the outstanding debts combined with run to withdraw funds before there are no dollars available would cause the whole system to collapse.
The short of this is, bad economic policy has created a situation where there are only more bad choices. At the end of the day, if you have been responsible and only borrowed what you can repay, you are going to get handed the bill to fix the mess created by people who were greedy, Its easy to blame the CEOs - they are the visible crooks, but there were far more "Average Joes" who were content to buy a mansion on a cottage budget - gambling the house would go up before the bill came due; the "average Janes" who leveraged every nickel their house seemed to have on paper to buy a new Lexus or Hummer, redecorate, take vacations, etc.
Capitalism works, but only if the government keeps its nose out of it! Without the pressure to make everyone a home-owner, the banks would have continued to make loans based on 20% cash down, credit score and debt ratio. Instead, the lies on the "stated income" loans have come to roost...not to mention the padded appraisals, inflated loans with buyer kickbacks, no-money-down so no equity lost to let it go and negatively amortizing loans.
Its going to be a long, bumpy ride for anyone who is trying to keep it all together financially. Good Luck!