The buzz in the publishing world this week has been about the auction, currently underway, for the memoirs of former CIA director George Tenet. The bidding — which should end early next week — could bring in as much as $5 million for the Bush administration defector. Whatever publisher wins, there's at least one person who can't lose — Robert Barnett, the D.C.-based attorney who represents Tenet. A senior partner of the D.C. firm Williams & Connelly, Barnett — who insists that journalists call him an attorney, not an agent — has become the go-to-guy if you think you've got...