Dear Mr Gordon, When I checked the digital signature on the Internet death threat using the PGP software and JOHNSON'S secret key ring, the computer identified the signature as one of the signature keys stored in JOHNSON'S computer. Because both the "private" and "public" portions of the "key" were stored on JOHNSON'S computer, the message can be authenticated as having been generated by the person who possessed this "secret key" and knew the correct password. In other words, only the person possessing the secret key found on JOHNSON'S computer could have generated the "death threat" message. Why would you claim only one person possessed the secret key? As you doubtlessly know, some of the TruthMonger secret keys have been posted to Cypherpunks anonymously. This is not authentication. Thank you.