This and other recent discussions here have lead me to the book,
The Secular Conscience. I've just started, but a good read so far. If anyone's wondering how a atheism and morality can coexist, take a gander.
Interestingly, it is so far making what I think, stripping away the bluster and red herrings, was Sir Dillon's point in the other thread. And, as presented by this author, I have a hard time finding fault with it. Namely, he argues that secular liberalism has taken the "belief is a private matter" concept too far, leaving them (us) impotent to engage in public critical discourse. If it's okay for everyone to believe whatever they want, then we can't criticize their statements of belief, right? Wrong, by Dacey's reasoning. His point is not, "it's private, so let's stay out of it," his point is, "Everyone's free to express it, so let's jump in and make ourselves heard." It's a strong point.