The closing ceremony of the Second Vatican Council in St. Peter Square on Dec. 9, 1965. Forty bishops pledged to forsake worldly goods, but the agreement was largely ignored. Pope Francis' emphasis on helping the poor has revived talk about the Pact of the Catacombs. Keystone-France/Gamma-Keystone via Getty Images hide caption

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The remains of St. Maria Goretti lie near the altar during Mass at St. John Cantius Church in Chicago on Oct. 12. It was one of 54 churches where her body was exhibited during a U.S. tour. Antonio Perez/TNS/Landov hide caption

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Republican U.S. presidential candidates Ted Cruz, Marco Rubio and Rick Santorum pray at the Presidential Family Forum in Des Moines, Iowa, November 20, 2015. The question of how to treat Syrian refugees has evoked different reactions in political evangelicals. Mark Kauzlarich/Reuters /Landov hide caption

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Journalists Emiliano Fittipaldi, left, and Gianluigi Nuzzi face criminal charges, along with three former Vatican officials. They're seen here at events publicizing their new books about financial dealings in the Catholic Church. AP hide caption

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Sister Lisa Maurer, nun and kicking coach for the College of St. Scholastica football team, watches during drills in October. Derek Montgomery for MPR News hide caption

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Tom Compton, associated with a Christian antiwar group, joins a few dozen supporters for the welcoming of Syrian refugees during a rally at the Arizona Capitol on Tuesday in Phoenix. Arizona Gov. Doug Ducey has joined a growing number of governors calling for an immediate halt to placement of new refugees in the wake of terrorist attacks in Paris. Ross D. Franklin/AP hide caption

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