This article describes approaches to Islam by evangelical authors after 9/11, and argues that the polemical tendencies in the writings of evangelical authors including R.C. Sproul, John MacArthur, and Don Richardson are missiologically imprudent, a distortion of history, and a betrayal of biblical theology. A responsible evangelical approach to Islam, by contrast, will take account of the presence of evil in all civilizations, the sovereignty of God over all cultures, and the doctrine of common grace. Evangelicals should disengage from the so-called “clash of civilizations” which pits Western civilization against Islamic civilization and should instead focus their efforts on theological engagement with Muslims. The article concludes by suggesting some directions that a theologically informed evangelical engagement with Islam might take.