Published in 1981, Among the Believers is the account of a journey through Iran, Pakistan, Malaysia and Indonesia in 1979, shortly after the Iranian revolution. Its subject, the Muslim fundamentalist revival, was not yet much of an issue inside Britain. (Naipaul made the journey again in 1995 for a sequel, Beyond Belief, but this first encounter with Islam proved to be the more revealing.) Like everyone else, I had been shocked and baffled by the attacks on America. And although I had read a good deal of the torrent of punditry unleashed by the events of September 11, I was little closer to understanding them. Since I was in the middle of writing a book about the Muslim Uighurs of China, I snatched the paperback up.