Re: OOC 5
I don't think the number of atheists is rising significantly--but they are getting more vocal. Twenty years ago, to be an atheist meant you were untrustworthy (in the public's eye). While this is still the case according to some studies, it has gone down by a good margin, which means atheists face less backlash for being open about their beliefs.
(And ultimately, again, I think this is a good thing for all parties. We grow through facing challenges; Christians benefit from someone saying "I think what you believe is wrong, and here is why".)