Doonesbury by Garry Trudeau for January 14, 1971
Transcript:
Mark: (Well, here I am on a train to Cambridge after my release on bail...They may be able to repress me on my own campus, but they can't keep me from being an outside agitator elsewhere! Oh, man, when they see the havoc I'll cause, the fuzz will regret the day they released me from jail...of course, they may already be on to me...)