Rick and Letha Heitman, of Centennial, Colo., bought their health plan in 2015 through Colorado HealthOP, an insurance cooperative that will close at the end of the year. HealthOp's CEO says the co-op was "blindsided" when some promised federal subsidies failed to materialize. John Daley/CPR News hide caption

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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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