From Science 2.0 "Scientists Discover that Atheists Might Not Exist".

One of the more interesting aspects of the secularisation debate is the difficulty of explaining why in countries like the UK, levels of religious belief seem to remain relatively high, even though levels of active religious participation are apparently in terminal decline.

This article from the website Science 2.0 suggests that religious patterns of thinking might be hard-wired into our brain. It's well worth a read.