More and more, atheist groups are coming out, thanks largely to today's New Atheists (Dawkins, Hitchens, Dennett, & Harris).
Combine this with the fact that American Christianity is phenomenally biblically illiterate and we have a spiritually interesting situation. By "biblical illiteracy" I include my observations that: 1) claiming to love the Bible and actually ingesting it regularly are two quite different things; 2) the preponderance of "folk Christianity" attests to the demise of biblical literacy; and 3) the great gap between "media Christianity" and the Real Jesus.
