It is, as Roger Kimball explains in The Fortunes of Permanence, a classic example of how a sensible concept or term of art that helps us grasp some narrow aspect of reality can end up distorting reality when ripped from its moorings and broadly applied. Another good example is “lone wolf.”

Since Thursday afternoon, newscasters have incessantly told us that the late and unlamented Zale Thompson was a “lone wolf.” Thompson was the 32-year-old Muslim from Queens who attacked four New York City police officers with a hatchet on Thursday, breaking one’s arm and critically wounding another with a gash to the head.

Reading off the familiar script, NYPD Commissioner Bill Bratton insisted that “nothing we know at this time would indicate” a connection to terrorism. This, despite Thompson’s Facebook page on which he portrayed himself as a mujahed warrior superimposed on Koranic verses and called for “guerilla warfare” against the United States.

Evidently, it is just one of those “violent extremism” coincidences that this “lone wolf” strike — translation: non-terrorist strike — occurred soon after the Islamic State urged Muslims in the West to “attack the soldiers of the tyrants and their police force.” In addition to Americans, Europeans, and Australians, the Islamic State lists the “infidels” of Canada among its enemy “tyrants.”

Thompson’s “lone wolf” jihad followed hard upon two separate “lone wolf” attacks in Canada this week. First, Martin Couture-Rouleau plowed a car into two soldiers, killing Warrant Officer Patrice Vincent. Then, Michael Zehaf-Bibeau shot Corporal Nathan Cirillo to death at the National War Memorial in Ottawa before spraying bullets inside Parliament (but fortunately killing no one else). Each “lone wolf” was killed in the aftermath, and each was reportedly a “recent convert to Islam.”

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