This is a complete red herring. There is parsing here worthy of Clinton.
The real issue is; "Who gave the forged documents to CBS. It was NOT Burkett.
Burkett has previously posted that he called Max Cleland and Cleland put him in touch with Kerry campaign. Burkett complained about having to go through "7 layers of bureauocracy" to get to someon in authority in Kerry campaign.
CBS is telling truth when they say they did not get docs from Burkett. They got them from Kerry campaign. Why did Rather fly to Dallas to interview Burkett is CBS didn't get docs from Burkett? Because Kerry campaign said they got docs from Burkett!
Who in Kerry campaign? Who came on to Kerry staff just before docs made their way to CBS? Carvile and Lockhart.
Could they do this?
Yes.
Would they do this?
Yes.
Of course, to Rather, Carvile or Lackhart are "unimpeachable sources."
CBS is falling on sword so they won't have to admit forged docs came from Kerry people.