PBS retaliates against Harper's after negative article

  PBS, whose Vatican is Boston's WGBH and  which increasingly targets its programming  to  affluent old people, has cancelled an ad in Harper's Magazine that discusses the Koch family's powerful role in PBS and the network's increasing separation from middle-and lower-inc0me people. The retaliation comes after an article in Harper's discussed what the author sees as PBS's timidity and moral decline.