As far as I'm concerned, the ongoing debate over how—and if—to formally define antisemitism largely misses the point. On the one hand, I fully agree that one first needs to be able to define a problem in order to be able to deal with it if not resolve it, and antisemitism is beyond question a problem of increasingly dire dimensions. At the same time, however, fixed definitions, like most dogma, far too often are an impediment to intelligent thought. I am sympathetic to Columbia University's task force on antisemitism which is trying to address the surging Jew-hatred—for that's what antisemitism...