God only knows how it came to this. Just 78.4 percent of Americans currently profess affiliation with a Christian body. And a quarter of Americans ages 18-29 disclaim membership in any religion. Meanwhile, 12.1 percent of adults describe their religion as "nothing in particular." All this while Mormons and Muslims outbreed everyone else.

Or so the Pew Forum on Religion & Public Life Reports this week, having extensively surveyed "the U.S. religion landscape."