an advisory board that is working to establish a graduate school of public and global affairs. Corzine is also serving as a visiting lecturer on politics and public policy at Farleigh's Wroxton campus in the United Kingdom. MF Global Corzine was appointed CEO and Chairman of MF Global, a multinational futures broker and bond dealer, in March 2010. MF Global's stock price declined two-thirds in the final week of October 2011 and its credit rating was reduced making its debt high-yield debt following huge quarterly losses. On October 31, 2011, trading was halted on shares of MF Global prior to the market opening, and soon thereafter MF Global announced that it had declared Chapter 11 bankruptcy. Shortly afterwards, federal regulators began an investigation into hundreds of millions of dollars in missing customer funds. Corzine resigned as CEO on November 4, 2011, after having retained the services of defense attorney Andrew J. Levander. It was reported that Corzine declined a severance package worth $12.1 million. MF Global's collapse was one of the ten biggest bankruptcies in U.S. history. Corzine was subpoenaed to appear before a House committee on December 8, 2011, to answer questions regarding 1.2 billion dollars of missing money from MF Global client accounts. He testified before the committee, "I simply do not know where the money is, or why the accounts have not been reconciled to date," and that given the number of money transfers in the final days of trading at MF Global, he didn't know specifics of the movement of the funds. He also denied authorizing any misuse of customer funds. In March 2012, Bloomberg reported on a memo produced by congressional investigators that quoted an internal company e-mail relating to a $175 million transfer that was a subject of their investigation. Initial media reports suggested impropriety on Corzine's part, but this was later disproved. According to the New York Times, the employee responsible for the transfer emailed Corzine stating the transfer was a "House Wire", meaning it came from the firm's own account. The instructions Corzine had given were to deal with several overdrafts at JPMorgan Chase, but never related to any specific accounts or specific transfers made. A spokesperson for Corzine responded that Corzine "never directed Ms. O'Brien or anyone else regarding which account should be used to cure the overdrafts, and he never directed that customer funds should be used for that purpose.