FILE - In this Friday, Jan. 11, 2013 file citizen journalism image provided by Edlib News Network, ENN, which has been authenticated based on its contents and other AP reporting, shows

 

              FILE - In this Friday, Jan. 11, 2013 file citizen journalism image provided by Edlib News Network, ENN, which has been authenticated based on its contents and other AP reporting, shows
FILE - In this Friday, Jan. 11, 2013 file citizen journalism image provided by Edlib News Network, ENN, which has been authenticated based on its contents and other AP reporting, shows rebels from al-Qaida affiliated Jabhat al-Nusra, as they sit on a truck full of ammunition, at Taftanaz air base, that was captured by the rebels, in Idlib province, northern Syria. Arabic on the flag, right, reads, "There is no God but Alllah and Mohammed is his prophet, Jabhat al-Nusra." On Syria’s front lines, rebels fighting to topple President Bashar Assad have turned against each other in a fight between al-Qaida-linked groups and more mainstream factions that has stalled advances on the battlefield and thrown the rebellion into turmoil. After violent clashes and the assassination of two rebel commanders, one of whom was beheaded, more moderate factions are openly accusing the hard-liners they once saw as allies of trying to take over the movement. (AP Photo/Edlib News Network ENN, File)