Nuns walk in the Bernini Colonnade in St. Peter's Square on the second day of the conclave to elect a new pope, at the Vatican, Wednesday, March 13, 2013. Cardinals remained divided over who should be pope on Wednesday after three rounds of voting, an indication that disagreements remain about the direction of the Catholic church following the upheaval unleashed by Pope Benedict XVI's surprise resignation. (AP Photo/Oded Balilty)