Religion_Belief

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Pope Francis greets the faithful from his popemobile as he leaves St. Peter's Square at the Vatican at the end of his weekly general audience on Wednesday, May 8, 2013. Francis also warned nuns gathered from around the world against using their vocations for personal ambition, saying priests and sisters who do so "do more harm to the church." (AP Photo/Andrew Medichini)

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Officers stand during the annual Blue Mass in the lobby of St. Patrick Catholic Church, Washington, D.C., Tuesday, May 7, 2013. The Blue Mass is held to pray for those in law enforcement and fire safety, remember those who have fallen, and support those who serve at the beginning of National Police Week. (Andrew Harnik/The Washington Times)

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A police officer stays out of the rain before the start of the annual Blue Mass held at St. Patrick Catholic Church, Washington, D.C., Tuesday, May 7, 2013. The Blue Mass is held to pray for those in law enforcement and fire safety, remember those who have fallen, and support those who serve at the beginning of National Police Week. (Andrew Harnik/The Washington Times)

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Units from federal, state, and local jurisdictions march in formation under a huge American flag hung between two fire ladder trucks before the start of the annual Blue Mass held at St. Patrick Catholic Church, Washington, D.C., Tuesday, May 7, 2013. The Blue Mass is held to pray for those in law enforcement and fire safety, remember those who have fallen, and support those who serve at the beginning of National Police Week. (Andrew Harnik/The Washington Times)

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Units from federal, state, and local jurisdictions march in formation under a huge American flag hung between two fire ladder trucks on a rainy afternoon at the start of the annual Blue Mass held at St. Patrick Catholic Church, Washington, D.C., Tuesday, May 7, 2013. The Blue Mass is held to pray for those in law enforcement and fire safety, remember those who have fallen, and support those who serve at the beginning of National Police Week. (Andrew Harnik/The Washington Times)

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Units from federal, state, and local jurisdictions march in formation under a huge American flag hung between two fire ladder trucks before the start of the annual Blue Mass held at St. Patrick Catholic Church, Washington, D.C., Tuesday, May 7, 2013. The Blue Mass is held to pray for those in law enforcement and fire safety, remember those who have fallen, and support those who serve at the beginning of National Police Week. (Andrew Harnik/The Washington Times)

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Cardinal Donald Wuerl, Archbishop of Washington, right, stands outside as units from federal, state, and local jurisdictions march in formation at the start of the annual Blue Mass held at St. Patrick Catholic Church, Washington, D.C., Tuesday, May 7, 2013. The Blue Mass is held to pray for those in law enforcement and fire safety, remember those who have fallen, and support those who serve at the beginning of National Police Week. (Andrew Harnik/The Washington Times)

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A rose and an officer's hat are placed at a lectern as Cardinal Donald Wuerl, Archbishop of Washington, second from right, arrives at the start of the annual Blue Mass held at St. Patrick Catholic Church, Washington, D.C., Tuesday, May 7, 2013. The Blue Mass is held to pray for those in law enforcement and fire safety, remember those who have fallen, and support those who serve at the beginning of National Police Week. (Andrew Harnik/The Washington Times)

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An officer stands at attention during Blue Mass in the lobby of St. Patrick Catholic Church, Washington, D.C., Tuesday, May 7, 2013. The Blue Mass is held to pray for those in law enforcement and fire safety, remember those who have fallen, and support those who serve at the beginning of National Police Week. (Andrew Harnik/The Washington Times)

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Officers stand during the annual Blue Mass in the lobby of St. Patrick Catholic Church, Washington, D.C., Tuesday, May 7, 2013. The Blue Mass is held to pray for those in law enforcement and fire safety, remember those who have fallen, and support those who serve at the beginning of National Police Week. (Andrew Harnik/The Washington Times)

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Officers stands at attention during Blue Mass in the lobby of St. Patrick Catholic Church, Washington, D.C., Tuesday, May 7, 2013. The Blue Mass is held to pray for those in law enforcement and fire safety, remember those who have fallen, and support those who serve at the beginning of National Police Week. (Andrew Harnik/The Washington Times)

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Cardinal Donald Wuerl, Archbishop of Washington, right, speaks during the annual Blue Mass held at St. Patrick Catholic Church, Washington, D.C., Tuesday, May 7, 2013. The Blue Mass is held to pray for those in law enforcement and fire safety, remember those who have fallen, and support those who serve at the beginning of National Police Week. (Andrew Harnik/The Washington Times)

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Cardinal Donald Wuerl, Archbishop of Washington speaks during the annual Blue Mass held at St. Patrick Catholic Church, Washington, D.C., Tuesday, May 7, 2013. The Blue Mass is held to pray for those in law enforcement and fire safety, remember those who have fallen, and support those who serve at the beginning of National Police Week. (Andrew Harnik/The Washington Times)

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Law enforcement and public safety officials stand during Blue Mass at St. Patrick Catholic Church, Washington, D.C., Tuesday, May 7, 2013. The Blue Mass is held to pray for those in law enforcement and fire safety, remember those who have fallen, and support those who serve at the beginning of National Police Week. (Andrew Harnik/The Washington Times)

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Officers stand during the annual Blue Mass in the lobby of St. Patrick Catholic Church, Washington, D.C., Tuesday, May 7, 2013. The Blue Mass is held to pray for those in law enforcement and fire safety, remember those who have fallen, and support those who serve at the beginning of National Police Week. (Andrew Harnik/The Washington Times)

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A rose and an officer's hat are placed at a lectern during the annual Blue Mass held at St. Patrick Catholic Church, Washington, D.C., Tuesday, May 7, 2013. The Blue Mass is held to pray for those in law enforcement and fire safety, remember those who have fallen, and support those who serve at the beginning of National Police Week. (Andrew Harnik/The Washington Times)

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U.S. Park Police Sgt. J. Jarboe, right, kneels in the isle during Blue Mass at St. Patrick Catholic Church, Washington, D.C., Tuesday, May 7, 2013. The Blue Mass is held to pray for those in law enforcement and fire safety, remember those who have fallen, and support those who serve at the beginning of National Police Week. (Andrew Harnik/The Washington Times)

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Washington, D.C. Mayor Vincent Gray, third from right, and Washington, D.C. Metropolitan Police Chief Cathy Lanier, second from right, stand during Blue Mass at St. Patrick Catholic Church, Washington, D.C., Tuesday, May 7, 2013. The Blue Mass is held to pray for those in law enforcement and fire safety, remember those who have fallen, and support those who serve at the beginning of National Police Week. (Andrew Harnik/The Washington Times)