The End of Reason
Ravi Zacharias is one of my favorite Christian authors & speakers. He has some extremely thought-provoking insights and at the same time he can be very humorous. "The End of Reason" was written as a direct response to Letter to a Christian Nation, by Sam Harris, a militant atheist.
I haven’t read "Letter to a Christian Nation," but I trust that what Ravi has to say about it in "The End of Reason," largely based upon my encounters with atheists on the internet. For the most part, they engage in ad hominem attacks and straw-man arguments, or Biblical contextomy (quoting the Bible out of context).
Ravi’s book does a good job of pointing out the absurdities in Harris’s book. For instance, Harris compares bringing children to Sunday School to child abuse, and claims that if he could chose to abolish only one or another, he would abolish religion instead of rape. This is what we’re dealing with in militant atheism.
"The End of Reason" is a good introduction to Christian apologetics, but I don’t know how well it would be received by the militant atheist crowd. I don’t see it as a mind-changing book, but possibly it could plant some seeds that would bear fruit in the future. I think "The End of Reason" would be important for college-bound students students to read to be prepared for the onslaught of militant atheism they will be facing on college campuses across the country and the world.

Good review :-)