Paul Holman writes, to about 10 email lists:

All, please forgive the cross-posting, I haven't been following any of these lists recently, but have a vested interest in this conversation and would like to be CC'd on this thread in the future.

First, can somebody please send me a reference for this alleged "Robot CA" article so I can read it.

See http://zgp.org/linux-elitists/20011113171821.D10036@zgp.org.html, which has links to an article about the Zimmermann speech at http://linuxjournal.com/article.php?sid=5605 and some ideas from Brad Templeton at http://www.templetons.com/brad/crypt.html.