[Steve_Seattle]

It sounds to me that Rather's "unimpeachable source" is Burkett, the paranoid ex-guardsman with a history of mental problems.

[capitan_refugio]

As some wags have noted, if it's Burkett, and he is not in elected or appointed office, he can't very well be impeached!

Does this Burkett fellow meet the criteria for the source? And is he capable of creating these forgeries?