Pope Francis waves to the crowd as he arrives to give Mass at Manger Square, outside the Church of Nativity in the West Bank town of Bethlehem, May 25, 2014. Pope Francis on Sunday invited the Israeli and Palestinian presidents to come to the Vatican to pray for peace a month after U.S.-backed talks aimed at ending the Middle East conflict collapsed. REUTERS/Finbarr O’Reilly (WEST BANK – Tags: RELIGION POLITICS TPX IMAGES OF THE DAY)