It would be interesting to see how well it works to send encrypted and steganographically hidden messages over spam. To most people, it's just another dumb pie

It would be interesting to see how well it works to send encrypted and steganographically hidden messages over spam. To most people, it's just another dumb piece of spam with a crappy JPEG attached. To others, it's an encrypted message hidden within the JPEG, identified by certain key phrases in the come-on text, possibly within the Bayesian poisoning which amounts to sequences of random words anyway. To GCHQ and the NSA, it's... well, if they want to dig through all the spam in the world looking for hidden messages which might not be there, let them.