Damian Thompson writes at the Web site of the Telegraph:
Let's put this simply: America is secularising just like Europe – and all that talk of "American exceptionalism", the free market in religion that kept it thriving, has turned out to be hogwash.
I'm not so sure he's right. But it is true that America has gone through up-and-down cycles of religious revivals in its history, with significant political implications (see my book on Samuel Adams for one example). It's certainly worth keeping a close eye on.