** FILE ** In this Wednesday, Aug. 28, 2013, file citizen journalism image provided by the United media office of Arbeen which has been authenticated based on its contents and other AP reporting, a member of a U.N. investigation team takes samples of sands near a part of a missile is likely to be one of the chemical rockets, according to activists, in the Damascus countryside of Ain Terma, Syria. (AP Photo/United Media Office of Arbeen, File)
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