PETA believes it may have a powerful new ally: the pope. The star-studded animal rights group — whose high-profile spokespeople include Paul McCartney and Pamela Anderson — is saying that Pope Benedict XVI is an animal-rights supporter and they’re hoping he will join their cause. PETA wasted no time in firing off a letter to the pope yesterday, congratulating him and asking, “Would you please encourage people to consider the suffering of animals by lending a supportive word to our efforts?” The letter cited comments made by the pope three years ago when he was Cardinal Ratzinger: “Certainly, a sort...