Bishops atend a mass celebrated by Pope Bemedict XVI marking the 50th anniversary of the Second Vatican Council, in St. Peter's Square at the Vatican, Thursday, Oct. 11, 2012. Benedict, after ... more 
Bishops atend a mass celebrated by Pope Bemedict XVI marking the 50th anniversary of the Second Vatican Council, in St. Peter's Square at the Vatican, Thursday, Oct. 11, 2012. Benedict, after celebrating mass, will greet churchmen, including a dozen original Vatican II participants, re-enacting the great procession into St. Peter's that launched the council in 1962. (AP Photo/Andrew Medichini) less 
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Thu, Oct 11, 2012 1:00 PM EDT