(In this picture released by the Vatican newspaper L'Osservatore Romano, Monsignor Guido Marini, Master of Liturgical Ceremonies, partly seen behind the doors, closes the double doors to the Sistine Chapel in after shouting \"Extra omnes,\" Latin for \"all out,\" telling everyone but those taking part in the conclave to leave the frescoed hall, at the Vatican, Tuesday, March 12, 2013. Marini then locked the doors. Cardinals from around the globe locked themselves inside the Sistine Chapel on Tuesday to cho)
