I know we don't normally do movie plugs on this list, but anyone who's planning to attend the technical plenary in Vancouver could do worse than watch "Terms and Conditions May Apply". It covers both commercial and governmental invasions of privacy, and how they are interlinked. http://www.imdb.com/title/tt2084953/ or http://tacma.net/ (but you might not want to click on the 'I agree' button until you've seen the movie...) Brian