Pope Francis celebrates mass in Asuncion, Paraguay, Sunday, July 12, 2015. Hundreds of thousands have 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.
Pope Francis celebrates mass in Asuncion, Paraguay, Sunday, July 12, 2015. Hundreds of thousands have 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. Natacha Pisarenko AP
Pope Francis celebrates mass in Asuncion, Paraguay, Sunday, July 12, 2015. Hundreds of thousands have 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. Natacha Pisarenko AP

Pope Francis leaves Latin America after delivering — at times — unsettling messages

July 12, 2015 07:01 PM

UPDATED July 12, 2015 07:20 PM

More Videos

  • Cuban and U.S. researchers team up to fight lung cancer

    Dr. Pedro Camilo Rodríguez, an immune oncology researcher at Cuba's Center of Molecular Immunology, talks about a combined effort between Cuban and U.S. researchers to fight lung cancer with a vaccine.