CBS Asking for Defamation Lawsuit?

Conventional wisdom over the past week has been that the actual target of the CBS story — President Bush — could certainly try to sue CBS for slander, but that he obviously won’t due to the political implications of such a move. But observe this passage from from the CBS statement:
“Two of the examiners, Mssrs. Matley and Pierce, attested and continue to attest to their belief in the documents