Ever since the News of the World affair blew up last week, media outlets have obsessed over how well News Corp.’s many outlets have covered the story. CNN’s Wolf Blitzer is only the latest to board this packed train. Here’s what Blitzer said at the outset of his package on Fox News Channel’s coverage: “The network has apparently gone out of its way to avoid a lot of reporting on its parent company’s troubles.” Now there’s a “promotable” story, as they say in the TV biz.