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Associated Press
A police officer checks the bag of a Catholic nun ahead of Pope Francis visit to Haghia Sofia, the Byzantine church-turned-mosque that is now a museum, in Istanbul, Turkey, Saturday, Nov. 29, 2014. Pope Francis visits two of Turkey's most iconic sites and shifts gears toward more religious affairs as he arrives in Istanbul for the second leg of his three-day visit to the Muslim nation. (AP Photo/Thanassis Stavrakis)

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