The fastest-growing faith in America is no faith at all. And now some atheists think they need a church. It seems unlikely that many of the 850 or so people at the Society for Ethical Culture on a recent Saturday night believed that God was still extant. But evolutionary biologist Richard Dawkins, author of The God Delusion and possibly the most famous atheist in the world, was not taking any chances. He gave a PowerPoint presentation driving home that religion does not meet any of the standards of basic scientific inquiry, before casually flicking away a few of His last...