The Muslim public-relations group CAIR—Council on American Islamic Relations—has a tough sell in post-9/11 America. But if its goal is simply to promote Islam as a "religion of peace" and to distance American Muslims from terrorism, why can't CAIR begin with a simple acknowledgment that the terrorist threat to America is real? Instead, CAIR's modus operandi has been to attack Christianity with the same, simplistic broad brush it claims is tarring Islam. After 20 years of teaching a World Religions course at Conservative Theological Seminary in Jacksonville, Fla., Rev. Gene Youngblood thought it was time to take his lessons to...