My Twitter alert went off yesterday, informing me of a breaking headline: the Vatican had just announced a new set of canon laws, called “the Apostolic Constitution,” whereby disaffected Anglican priests and parishioners, in fact entire Anglican congregations, can now be welcomed into Rome’s embrace and communion. The decision, “reached in secret by a small cadre of Vatican officials” (Associated Press), apparently caught even the Archbishop of Canterbury, Rowan Williams, by surprise.