Wahhabism is a fundamentally violent doctrine of Islam. It teaches that people fall on one of two sides: the Wahhabis, the chosen who will ascend to heaven; and the rest of humanity, including all other Muslims—all of whom are infidels who are to be hated, persecuted, and even killed. Wahhabis have killed people in Algeria, Afghanistan, Iraq, Syria, London, New York, and now Pensacola. Their essential, intractable violence must be acknowledged if it is to be effectively dealt with.