According to Wikipedia, "The term public intellectual "describes the intellectual participating in the public-affairs discourse of society, in addition to an academic career." The editor of this blog frequently cites Wikipedia definitions of important concepts, but he was surprised and disappointed by the narrow academic focus of its definition in this case. Ezra Klein is not a tenured professor in a university and does not have a PhD, the union card usually required for admission to tenure. But neither did Walter Lippmann, one of this nation's first and most eminent public intellectuals
