Pope Francis waves as he leads his Sunday Angelus prayer in Saint Peter's square at the Vatican on Sunday. Francis reportedly told an Italian newspaper that statistically, about 2 percent of Roman Catholic priests are pedophiles. Tony Gentile/Reuters/Landov hide caption

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Pope Francis prays during a visit to the Western Wall, Judaism's holiest site, in Jerusalem's Old City, earlier this week. While in the Holy Land, the pontiff extended an invitation to the presidents of Israel and the Palestinian Authority to join a prayer meeting at the Vatican. Debbie Hill/UPI/Landov hide caption

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Father Ibrahim Shomali, a Palestinian priest, holds prayer vigils every Friday in the Cremisan Valley near Bethlehem. Israel is planning to build a wall, citing security needs, on agricultural land here owned by a local monastery. Shomali has asked Pope Francis to intervene. Emily Harris/NPR hide caption

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Tourists walk past a poster of Pope Francis hanging on the Church of the Nativity in the West Bank town of Bethlehem on Monday. Pope Francis' trip to the Mideast later this week will commemorate the 50th anniversary of a historic rapprochement between Catholics and Orthodox, who split nearly 1,000 years ago. Mussa Qawasma/Reuters/Landov hide caption

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Tapestry portraits of Pope John Paul II (left) and Pope John XXIII hang from balconies on the facade of St. Peter's Basilica in Rome. On Sunday, the two pontiffs will officially be declared saints. Claudio Peri/EPA/Landov hide caption

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Tourists walk past a poster of Pope John Paul II on April 13 in Rome. Gregorio Brogia/AP hide caption

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