The House Commodity Futures Trading Commission's review of MF Global are getting closer to finding out where 1.2 billion dollars of investor's funds went. Former Chief Executive John Corzine has testified he does not know where the funds went, and was unaware that any customer money was missing until October 30th of this year. The now bankrupt brokerage firm made a 6.3 billion dollar bet on European  sovereign  debt. Louise Story is Wall Street and finance reporter for our partner The New York Times.