Wall Street and Main Street.

I recently read "The End of Wall Street" by Roger Lowenstein. It is an excellent summary of what caused the Recession and clear explanations of events and the techniques the Wall Street boys used. These actions directly effect Main Street. The current Goldman Sachs investigations should be the last chapter but the book was written before the investigations.
This book is an example of American business ingenuity and Capitalism at it's best - like it or not. Banks needed more money for mortgages, Wall Street figured out how to get it. It took the regulators too long to understand what was happening if they ever did.
The self righteous politicians are pontificating about the evils of Goldman Sachs but refuse to admit that their excessive demands for affordable housing for unqualified people had as much to do with the problem as anything. They are about to bring criminal charges against Goldman Sachs and do not understand what they are trying to prosecute.
Some Wall St business practices need to be regulated. But first politicians should try to understand what they are regulating. It seems that most of the time it is against the nature of a politician to know what they are talking about. Because of this, right or wrong, politicians will always be outsmarted by our best and brightest on Wall Street who do know what they are talking about- right or wrong.