FILE - In this Monday, Sept. 10, 2012 file photo, a Free Syrian Army fighter walks through a street in Amariya district in Aleppo, Syria. Piece by piece, Syria's rebels are slowly starting to expand their arsenal and get their hands on more advanced weapons, something that has been their constant aim in the 19-month-old uprising against the regime of President Bashar Assad. The process still appears to be haphazard and improvised: Far from a reliable, organized pipeline, it often remains a scramble by individual units in the highly fragmented rebel forces to obtain what they can. Most units still rely on their staple arsenal of automatic weapons, hand grenades and rocket-propelled grenades. (AP Photo/ Manu Brabo, FIle)
