Pope Francis (C) is greeted by a boy as Colombian President Juan Manuel Santos (2-R) and his wife Maria Clemencia looks on during a ceremony at the Narino presidential palace in Bogota on September 7, 2017. Pope Francis holds an open-air mass Thursday in Colombia and meets with its Nobel Peace Prize-winning president to cheer the country on its march towards reconciliation after a half-century war. / AFP PHOTO / Raul ARBOLEDA