An essential column by John Podhoretz unearths the skeletons buried in CBS News’s back yard, a history of distortions and outright fabrications that began long before Rathergate: Dan Rather’s Day of Reckoning.

CBS NEWS airs a report about a Vietnam-era controversy. Almost immediately the report comes under harsh attack, its credibility and essential honesty challenged. There’s a huge uproar, complete with calls for a congressional investigation. CBS is compelled to acknowledge certain errors in its handling of the story, though senior officials say pointedly that no one has challenged its basic thrust.

Does this sound familiar? It is, but this is not just a quick-and-dirty recap of the current mess at CBS. For the few CBS News staffers who have been at the network for more than 30 years, the events of the past few weeks must make them feel they’re trapped inside Nietzsche’s “eternal return.” This is the third occasion over the past 32 years in which CBS News has been caught behaving unethically and irresponsibly in the reporting and editing of a hot-button issue involving the United States, the Vietnam war, and the behavior and conduct of senior officials in Washington.

One of those CBS employees with a long memory is Dan Rather, who has been with the network’s news division for 42 years. If you want to understand why Rather is being so recalcitrant and finding it so difficult to make a full acknowledgment of his role in perpetrating a colossal journalistic and political fraud—and why he was so adamantly opposed to an internal investigation of his now-infamous story about George W. Bush’s National Guard service—you need to understand that Rather saw his network weather two previous and surprisingly similar tempests.

It did so in the first case, in 1971, by refusing outright to have its programming examined by Congress and winning plaudits and awards for doing so. The offending program was a documentary entitled The Selling of the Pentagon. It stands even today as a monument in the history of American broadcasting, an award-winning subject of veneration in journalism schools—despite the fact that the producer lied to sources when he assembled the documentary and used some astoundingly dishonest editing to change the meaning of statements by two Pentagon officials caught on film by CBS (one of whom later sued the network to little effect).