In this image taken from video provided by CTV, Monsignor Guido Marini, master of liturgical ceremonies, closes the double doors to the Sistine Chapel in Vatican City Tuesday, March 12, 2013, at the start of the conclave of cardinals to elect the next pope. Marini closed the doors after shouting &quot;Extra omnes,&quot; Latin for &quot;all out,&quot; telling everyone but those taking part in the conclave to leave the frescoed hall. He then locked it. (AP Photo/CTV)
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