Pope Francis greets faithful as he is driven through the crowd along Via della Conciliazione after celebrating the ceremony for the canonizations of Pope John XXIII and Pope John Paul II in St. Peter's Square, at the Vatican, Sunday, April 27, 2014. Pope Francis declared his two predecessors John XXIII and John Paul II saints before some 800,000 people on Sunday, an unprecedented ceremony made even more historic by the presence in St. Peter's Square of emeritus Pope Benedict XVI. (AP Photo/Riccardo De Luca)