For any of you interested in history, here's a little more background: 
(From The Far Queue): 
"Reality Czech" "People will agree with you only if they already agree with you. You do not change people's minds. "
                                 -Frank Zappa 1940-1993
[via Boing Boing, 
Frank Zappa's anti-censorship letter]
[Boing Boing also searched out that the scanned letter, including its hand-addressed envelope, is available on 
Flickr.   ]