President and CEO of Wal-Mart Mike Duke participates on a panel discussion at the Clinton Global Initiative in New York September 22, 2009. About 1,200 participants including heads of state, business leaders, humanitarians and celebrities will attend the fifth annual Clinton Global Initiative (CGI) which started on Tuesday. Reuters Pictures 2 months ago

President and CEO of Wal-Mart Mike Duke participates on a panel discussion at the Clinton Global Initiative in New York September 22, 2009. About 1,200 participants including heads of state, business leaders, humanitarians and celebrities will attend the fifth annual Clinton Global Initiative (CGI) which started on Tuesday.