Pope Francis celebrates Mass at the Cathedral Basilica of Sts. Peter and Paul Saturday, Sept. 26, 2015, in Philadelphia. Francis rode by motorcade to the downtown Cathedral and celebrated a Mass for about 1,600 people. In his homily, he said the future of the Catholic Church in the U.S. requires a much more active role for lay Catholics, especially women.(Tony Gentile/Pool Photo via AP), APTOPIX