I hate what’s happening to Katie Couric. If, for instance, you’ve been in a supermarket checkout line recently, you’ve seen her face plastered on the cover of the National Enquirer, next to a headline that declares that bad ratings and backstabbing have demoralized her so much she wants out. True or not, such Enquirer stories are indicators in their own way (of someone’s wish fulfillment, if not necessarily hers). You can’t call Couric blameless for the rain of ill-will she’s now enduring. She’s been in media all her adult life and she knows full well that few worlds fulminate with...