WASHINGTON - MARCH 13: (L-R) Treasury Secretary Henry Paulson, former Federal Reseve System chairmen Alan Greenspan and Paul Volcker, Arthur Levitt, senior adviser to The Carlyle Group and former chairman of the SEC, and SEC Chairman Christopher Cox, visit after a panel discussion on capital markets at Georgetown University March 13, 2007 in Washington, DC. Secretary Paulson hosted the 'Treasury Conference on U.S. Capital Markets Competativeness,' a day-long program to focus on capital market issues like regulation, competition and other related topics.