Free Syrian Army fighter carries weapon as he and fellow fighters escort convoy of U.N. vehicles carrying a team of U.N. chemical weapons experts at site of alleged chemical weapons attack in Damascus

A Free Syrian Army fighter carries his weapon as he and fellow fighters escort a convoy of U.N. vehicles carrying a team of United Nations chemical weapons experts at one of the sites of an alleged chemical weapons attack in Damascus’ suburbs of Zamalka August 28, 2013. REUTERS/Bassam Khabieh