VATICAN CITY – What happens to the mystery cardinal the late Pope John Paul II selected in 2003 but never publicly identified? Will the world ever find out who was picked? Vatican watchers wondered Monday whether there was still a way in accordance with Church law for this unidentified "prince of the Church" to take his place among the cardinals and, if he is young enough, vote for the new pope. When John Paul created new cardinals in 2003, he announced that he was keeping one name secret, or "in pectore," meaning "in the heart." This is a formula that...