Abstract: Last month, Rowan Williams, the archbishop of Canterbury, gave a nuanced, scholarly lecture in London about whether the British legal system should allow non-Christian courts to decide certain matters of family law. Britain has no constitutional separation of church and state. The archbishop noted that ''the law of the Church of England is the law of the land'' there; indeed, ecclesiastical courts that once handled marriage and divorce are still integrated into the British legal system, deciding matters of church property and doctrine. His tentative suggestion was that, subject to the agreement of all parties and the strict requirement of protecting equal rights for women, it might be a good idea to consider allowing Islamic and Orthodox Jewish courts to handle marriage and divorce. Then all hell broke loose. From politicians across the spectrum to senior church figures and the ubiquitous British tabloids came calls for the leader of the world's second largest Christian denomination to issue a retraction or even resign. Williams has spent the last couple of years trying to hold together the global Anglican Communion in the face of continuing controversies about ordaining gay priests and recognizing same-sex marriages. Yet little in that contentious battle subjected him to the kind of outcry that his reference to religious courts unleashed. Needless to say, the outrage was not occasioned by Williams's mention of Orthodox Jewish law. For the purposes of public discussion, it was the word ''Shariah'' that was radioactive.