When one goes to University (and for some, even earlier), there is a worldview that is encountered, which disrupts a core belief that was once held. That is, Christianity is true, it's real, and it's the most commonly held belief, in case there were any doubts.
Rationalization will always only take us so far. Once this logic-train has seemingly come to a close, what is left? Science will always appear to take us on a path outside of our Sunday School walls. Yet, at least the most liberal of Christians would see the parallels between the Genesis account and evolution. From dust we were created, afterall.
So, what is happening in our culture these days? Well, the popularity of (ETA) agnosticism seems to be the new "cool". It is tempting to join this bandwagon of sorts as we are encountered with ridicule and even anger. Many Christians who, of course, doubt, will find it difficult to go against this fast-growing status quo. No matter who you are or what you believe, it is human nature (as well as quite intellegent) to have doubt about something you believe in so strongly; Atheist, Agnostic, Jew, or Buddhist.
If we don't investigate, we won't know why we believe. Christ-follower's main product is the bible. It tells those of us who look to it that we need to "know why we believe". The more I investigate God outside of this book, the more I do believe and the less likely I am to cave under the influence of the science that merely 'explains' how God made this amazing universe, not how it disproves him.
I wanted to direct your attention to the blog that inspired my thoughts today. A bit more food for thought:
http://blog.rogersradiointernet.com/andrewkrystal/2009/02/05/atheists-wh...