A Shiite gunman holds an rocket-propelled grenade as they block vehicles on a road in the village of Bazzaliyeh which leads the eastern Lebanese town of Arsal in the Bekaa valley, near the border with Syria, as they search for the killer of Lebanese policeman Ali al-Bazaal on December 6, 2014. The Al Qaeda-linked Syrian extremist group the Al-Nusra front claimed to have killed the captured Lebanese policeman to avenge the arrest of militants' wives and children. AFP PHOTO / STR        (Photo credit should read STR/AFP/Getty Images)

World News