Pope Francis is welcomed by Turkish President Recep Tayyip Erdogan at the Presidential palace in Ankara, Friday, Nov. 28, 2014. Pope Francis arrived in Turkey on Friday at a sensitive moment for the Muslim nation, as it cares for 1.6 million refugees and weighs how to deal with the Islamic State group as its fighters grab chunks of Syria and Iraq across Turkey's southern border. (AP Photo/Burhan Ozbilici)