You know Clinton tried this on when he was being queried about his very brief sojourn at Oxford, instead spending the the better part of two years knocking about in Czechoslovakia, the DDR, and Russia.
That is, he tried to intimate that he had been on CIA business!
I frankly always gave the story SOME credence, because of the incredible pass Bushpa gave him in 1992. I figured, "... there must be some reason why the former head of the CIA is letting this crook off the hook ..."
The Bush pass to Clinton in '92 must remain one of the great unanswered questions of the 20th C. Anyway, maybe Kerry WAS an FBI mole. I doubt it and I want to see thoise records, too!