A few snippets from her current article on Rathergate:
Finally, Burkett claimed a woman named Lucy Ramirez had passed the documents to him at a livestock show in Houston. It is believed that this account marks the exact day that Burkett's lithium prescription ran out. Despite the fact that no one at CBS was able to locate Ramirez, CBS ran with the story. [snip]
Instead, Mapes described Burkett in the abstract as: "solid," "without bias," "credible," "a Texas Republican of a different chromosome," a "John McCain supporter," "reliable" and "a maverick" -- leaving out only "Burkett is convinced he can communicate with caterpillars" and "his best friend is a coffee table." His name was not important. It's not as if he was the sole source for a highly damaging story about the president eight weeks before the election or anything. Oh wait ...
At a meeting with CBS lawyers the day the story would air, Mapes "did not reveal the source's name or anything negative about the source," but "expressed 'enormous confidence' in her source's reliability and said that he was solid with no bias or credibility issues." She described Burkett as a "moralistic stickler." The subject of UFOs simply never came up. [snip]