Pope Francis, center, celebrates mass in Asuncion, Paraguay, Sunday, July 12, 2015. Hundreds of thousands gathered on a huge swampy field called Nu Guazu inside a military base to attend the mass. At this very spot, Pope John Paull II in 1988 canonized Paraguay's first saint, Roque Gonzalez de Santa Cruz, a Jesuit priest that was a missionary to the Guarani people. (AP Photo/Gregorio Borgia)