Wall Street tumbles, weighed by Goldman charges, tech earnings

A policeman stands on duty at the headquarters of Goldman Sachs in Manhhatan borough in New York April 16, 2010. The US Securities and Exchange Commission (SEC) on Friday charged Wall Street investment giant Goldman Sachs for "defrauding investors" over subprime mortgage securities, which were largely blamed for the worst financial crisis since the Great Depression. [Xinhua]