In honor of the papal visit, I submit the worst, longest, most tortuous pope joke I know. It's 1969. China and the Soviet Union are on the brink of open hostilities. The war would kill us all. And only the pope can save the day. Well, so thinks Richard Nixon. See, he'd been up all night watching *The Shoes of the Fisherman*, and it was such a harrowing vision that he was determined that the pope, and only the pope, could broker a deal between two hostile nations. If you've not seen *The Shoes of…