A Sunni gunman fires his weapon during clashes between pro- and anti-Syrian-regime gunmen in the port city of Tripoli, Lebanon, on Wednesday, Dec. 5, 2012. (AP Photo/Hussein Malla)

Photo by: Hussein Malla

A Sunni gunman fires his weapon during clashes between pro- and anti-Syrian-regime gunmen in the port city of Tripoli, Lebanon, on Wednesday, Dec. 5, 2012. (AP Photo/Hussein Malla)