My Washington Examiner column this week looks at the rush to score partisan points over the horrific slaughter in Norway last Friday.

In it, I argue that blaming Al Gore for the Unabomber, Sarah Palin for Jared Loughner, or Bruce Bawer for Anders Breivik makes about as much sense as blaming Martin Scorcese and Jodie Foster for the actions of John Hinckley. In general, “invoking the ideological meanderings of psychopaths is a stalking horse for narrowing permissible dissent.”

And right on cue, here’s today’s New York Times editorial on Breivik, decrying “inflammatory political rhetoric” about Muslim immigration in Europe:

Individuals are responsible for their actions. But they are influenced by public debate and the extent to which that debate makes ideas acceptable — or not. Even mainstream politicians in Europe, including Prime Minister David Cameron of Britain, Chancellor Angela Merkel of Germany and President Nicolas Sarkozy of France have sown doubts about the ability or willingness of Europe to absorb newcomers. Multiculturalism “has failed, utterly failed,” Mrs. Merkel said last October.

Oh, Grey Lady: you had me at “individuals are responsible for their actions,” but you lost me after “but.”

Because, maybe there are, in fact, limits to the ability or willingness of Europe to absorb newcomers. And perhaps multiculturalism has failed. I don’t know—I don’t live in Europe, and I don’t follow its immigration debates closely. But contra the Times’ editorialists, it seems to me that these ideas are “acceptable,” in the sense that they might actually be true, and that you ought to be able to debate them without thereby becoming morally responsible for the actions of lone psychotics.

Virtually every European immigration skeptic manages to participate in that debate without resort to violence, just as vanishingly few hard-core environmentalists try to promote their ideas by means of armed assault. The actions of the deranged few don’t tell us much about what’s wrong with those political stances.

As others have pointed out, the notion that you should “watch what you say” in political debates amounts to giving a sort of “heckler’s veto” to the biggest nutjobs within earshot.

As a means of avoiding horrifying—but thankfully rare—events like mass shooting sprees, it doesn’t seem terribly promising. But it might help you temporarily intimidate your ideological opponents—which is why it’s a perennially popular tactic.