Pope Benedict XVI celebrates a mass in St. Peter's Basilica at the 

Pope Benedict XVI celebrates a mass in St. Peter's Basilica at the Vatican, Tuesday, Jan. 1, 2013. (AP Photo/Andrew Medichini)
Associated Press
Pope Benedict XVI celebrates a mass in St. Peter's Basilica at the Vatican, Tuesday, Jan. 1, 2013. (AP Photo/Andrew Medichini)
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