Jon Corzine's Appetite For Hair-Raising Challenges

The sudden bankruptcy of commodities trading firm MF Global has thrust a familiar name in to the spotlight: Jon Corzine. Previously, Corzine was governor of New Jersey, a U.S. senator and chairman and CEO of the investment firm Goldman Sachs. Corzine resigned last week as chairman and CEO of MF Global as investigators search for hundreds of millions of dollars missing from clients' accounts.