Pope Francis salutes pilgrims upon his arrival for his weekly open-air general audience on September 4, 2013 in St.Peters square at the Vatican. The pontiff asked for a big turnout at a Vatican vigil on Saturday for peace in Syria and thanked the world's faithful and non-believers for their support. "May the cry for peace ring out loud around the world," the pope told tens of thousands of faithful in St Peter's Square, and the "Peace begins in our hearts," he said. AFP PHOTO / VINCENZO PINTO