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Pope Francis speaks during a mass he celebrated in Ciudad Juarez, Mexico, Wednesday, Feb. 17, 2016. Francis is on his way back to Italy after a five-day visit in Mexico. (L’ Osservatore Romano/Pool photo via AP)

Pope Francis speaks during a mass he celebrated in Ciudad Juarez, Mexico, Wednesday, Feb. 17, 2016. Francis is on his way back to Italy after a five-day visit in Mexico. (L' Osservatore Romano/Pool photo via AP)