In this image taken from video obtained from the Sham News Network, which has been authenticated based on its contents and other AP reporting, a pair of what activists say are tanks from President Bashar Assad regime in sit in a street in the Daraya neighborhood of Damascus, Syria, just before one of them fires a shot Friday, Jan. 25, 2013. Troops battled rebels around Damascus in an effort to dislodge opposition fighters who have set up enclaves around the capital, including Daraya and Zabadani. (AP Photo/Sham News Network via AP video)
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