Pope Francis, flanked by children he invited on his pope-mobile,tours St. Peter's Square at the end of a Palm Sunday Mass, at the Vatican Sunday, March 20, 2016. Pope Francis in his Palm Sunday homily decried what he called indifference to the refugees flooding into Europe, making a comparison to authorities who washed their hands of Jesus' fate ahead of his crucifixion. (AP Photo/Alessandra Tarantino)