OK, so if you were really paranoid, you wouldn't even let 'THEM' know you were using pgp.
But... if you were only mildly paranoid, you would:
1. Break your message into several short blocks
2.. Encrypt them with your friends public pgp key in ascii format
3. Change the parts of the messages that say "BEGIN (END) PGP MESSAGE" to read "BEGIN (END) PGP PUBLIC KEY BLOCK"
4. Post them in an innocuous place and let the recipient know that they are there. When he/she decypts them, he/she doesn't even need to change "PGP PUBLIC KEY BLOCK" back to "PGP MESSAGE". Thanks, Phil :).
In this way, you can console your paranoia by telling it that while the cryptocops may know you HAVE pgp, they don't know you are using it to send messages.
Trivial, I know, but hey - it was one of those trivial days........
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