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How Does a Ponzi Scheme Work? 
Prosecutors say Bernard Madoff used a Ponzi scheme to bilk people out of $50 billion and a Ponzi scheme is described in this short video. 

Awaiting Sarbanes-Oxley Ruling 
Harvey Pitt, a former U.S. Securities and Exchange Commission chairman, talks about the U.S. Supreme Court's ruling that Congress violated the Constitution when it set up an auditing board after the Enron Corp. and WorldCom Inc. collapses.