Haiti's President Martelly ) and PM Lamothe place flowers during memorial service remembering lives lost in January 2010 earthquake at mass burial site at Morne St. Christophe

Haiti's President Michel Martelly (C) and Prime Minister Laurent Lamothe (L) place flowers during a memorial service remembering the lives lost in the January 2010 earthquake at the mass burial site at Morne St. Christophe January 12, 2013. Former U.S. president Bill Clinton flew to Haiti on Saturday to join the Martelly, at an official commemoration of the third anniversary of the earthquake that decimated the capital and killed more than 250,000 people. REUTERS/Swoan Parker