Doonesbury by Garry Trudeau for September 23, 1977
Transcript:
Man: Doctor, I think you're beginning to hedge again. Would you be more comfortable on deep background? Barney: Wait a minute! What is DEEP background? Man: Deep background is "as the official position is understood to be." If you repeat it, you have to do it on your own authority! Barney: What happens if I say where I got it? Man: Doc denies everything, and you lose face. Kissinger: You also receive a failing grade. Man: Yeah, it's traditionally enforceable! Barney: I'll be darned.