In this image taken from video that has been authenticated based on its contents and other AP reporting, Syrian rebels capture a helicopter air base near the capital, Damascus, after fierce fighting on Sunday, Nov. 25, 2012.  (AP Photo/Ugarit News via AP video)

Photo by: Uncredited

In this image taken from video that has been authenticated based on its contents and other AP reporting, Syrian rebels capture a helicopter air base near the capital, Damascus, after fierce fighting on Sunday, Nov. 25, 2012. (AP Photo/Ugarit News via AP video)