[Travis McGee]

It's called steganography. I hope the NSA is up to the task.

[Squantos]

Yah Dat's it !.......Do ya have any noooze on the seven seas group ? Are they still active ?

[mu3tausim]

I'm sure they are.

One can already download freeware programs on the web that will hide a message inside graphics files. Send your graphics file to someone else, who then uses the same program to un-encrypt it.