So will we be roused to meet the challenge? Doesn’t seem like it. On Friday morning, the damning and utterly predictable details began pouring in the second the jihadists were identified — “Outlook: Islam”; a YouTube playlist called “Terrorists” that included the ditty, “I will dedicate my life to jihad”; a wife who abruptly converted to Islam and began dressing in what a neighbor called “the Islamic style”; an apparent reverence for the notorious sharia jurist Sheikh Feiz Mohammed. Yet the media commentary, even if it grudgingly mentions these things, internalizes none of them. “How shocking it is,” we’ve repeatedly heard, “that the brothers Tsarnaev want to mass-murder Americans. After all, they’re Chechen Muslims, and the Chechens’ beef is with the Russians, not us.”

Good grief. It is the Uighurs all over again. You’ll recall the Uighurs — they were a group of Turkic-speaking jihadists from the Xinjiang region of China, detained at Guantanamo Bay because they trained in Afghanistan with an al-Qaeda-affiliated terrorist organization (the East Turkistan Islamic Movement). At least some of them fought against American forces. Nevertheless, we released them. Stroking its bloated chin, our government rationalized that they could not be enemy combatants because they weren’t our enemies — their beef was really with China, right? After all, Islam is a Religion of Peace and we’re very nice people, so why should we assume they might have a problem with us?