Pope Benedict XVI arrives to preside over the celebration of Vespers at the Basilica of St. Paul Outside the Walls in Rome on Monday. Alessandra Tarantino/AP hide caption

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Two veiled Muslim women walk down a street in Marseille, in southern France. Michel Gangne/AFP/Getty Images hide caption

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Senate Chaplain Barry Black (second from right) prays with his staff before delivering the prayer to open the legislative day of the U.S. Senate. Walter Ray Watson/NPR hide caption

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Pope Benedict XVI, shown here on Dec. 31 at the Vatican's St. Peter's Basilica, is scheduled to visit Rome's main synagogue this weekend. Recent moves by the pontiff have raised tensions with Jews — in particular Roman Jews, who suffered amid Pope Pius XII's silence during World War II. Pope Benedict has put his wartime predecessor on the track to sainthood. Pier Paolo Cito/AP hide caption

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Members of the Uganda National Pastors Task Force Against Homosexuality demonstrate in front of the Royal Danish Embassy in Kampala, Uganda, in December. Stephen Wandera/AP hide caption

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A man walks past the Papal Cross in Dublin, which was built for the visit of the late Pope John Paul II in 1979. A new blasphemy law in Ireland makes uttering anything abusive about matters held sacred by any religion an offense punishable by a fine of some $35,000. Peter Muhly/AFP/Getty Images hide caption

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