PGP doesn't hide metadata, anonymous remailers hide metadata. Add a sufficient volume of dummy messages and all of a sudden nobody can do traffic analysis, eith

PGP doesn't hide metadata, anonymous remailers hide metadata. Add a sufficient volume of dummy messages and all of a sudden nobody can do traffic analysis, either. Think ATM: There's a constant volume of "cells" but only some of them are actually carrying anything. That, or blasting your message to a huge number of people, only one or a few of whom actually receive it because it's encrypted and then steganographically hidden in spam. Again, use dummy messages and there's no way to predict anything by divining the ebb and flow of spam volumes.