http://www.nytimes.com/library/cyber/week/0706patrol-reporters.html "If we believe the encryption scheme has been compromised, we will make another one."

Heh. It seems that these companies are going to have a problem as long as they use lists of *excluded* sites. Forget insight into company policy; these are global indices of "smut" on the net. (The lists of the more liberal companies are probably most attractive to those not titillated by NOW position papers.) They have to give you the list, and they have to give you software that uses it, so there's no way to achieve complete secrecy. I think the best they can do is to distribute a list of hashed URLs. -- Eli Brandt eli+@cs.cmu.edu