Syrians search for survivors amidst the rubble following an airstrike in the Shaar neighborhood of Aleppo on December 17, 2013. Two children were among at least 13 people killed in new air strikes on a rebel-held district of Syria's main northern city of Aleppo, the Syrian Observatory for Human Rights said. AFP PHOTO/MOHAMMED AL-KHATIEB (Photo credit should read MOHAMMED AL-KHATIEB/AFP/Getty Images)
