Former President Bill Clinton (L) appears with actor Brad Pitt while discussing post-Katrina New Orleans at the Clinton Global Initiative (CGI) September 24, 2009 in New York City. The fifth annual meeting of the CGI gathers prominent individuals in politics, business, science, academics, religion and entertainment to discuss global issues such as climate change and peace in the Middle East. The event, founded by Clinton after he left office, is held the same week as the General Assembly at the United Nations, when most world leaders are in New York City. Photo: Mario Tama, Getty Images / 2009 Getty Images