Commissioner Detlev Mehlis (L) of United Nations International Independent Investigative Commission addresses the United Nations Security Council on the assassination of former Lebanese Prime Minister Rafik Hariri beside Permanent Representative of Lebenon, Ibrahim Assaf, at the United Nations in New York City December 13, 2005. Mehlis, who has headed the U.N. probe into Hariri's assassination, told the Security Council that cooperation with Damascus had improved but he was not sure this would continue. REUTERS/Peter Foley