Pope Francis is urging young Catholics to shake up the church and make a "mess" in their dioceses by going out into the streets to spread the faith.
It's a message he put into practice by visiting one of Rio's most violent slums and opening the church's World Youth Day on a rain-soaked Copacabana Beach Thursday.
“1970s surveys suggested that 90 percent of Brazilians identified with being Catholic, and now it's just shy of 60 percent,” says Suzette Grillot, the Dean of the University of Oklahoma’s College of International Studies. “You've seen declining numbers. The pope wants to try to boost those numbers.”