The configuration and physical impact of the bomb detonated last Saturday in Stockholm is best left for forensic specialists to evaluate. For the rest of us, the most important aspect of the event is that it constitutes yet another warning for the unctuously self-righteous, effeminate and oblivious West that Islamist attacks are based on what we do, not who we are and how we think. Taymour Abdul Wahab, the dead bomber, claimed his attack was motivated by Sweden’s contribution of five hundred troops to the U.S.-led Afghan war, the media’s printing of caricatures of the Prophet Muhammad and other Western...