While the provenance of this particular bumper sticker is unknown, many conservatives in the 1960s sought to diminish liberal student political action by dismissing it as unprincipled violence. The ubiquity of the sentiment is suggested by a famous 1967 New York Review of Books article written by Students for a Democratic Society leader Tom Hayden, who illustrated the conservative bias of the Newar k police force by noting that its headquarters featured "two signs which hint at the police world view: 'BOMB HANOI' and 'GO TO COLLEGE AND LEARN TO RIOT.'" This bumper sticker and similar signs made their points via relatively subdued sarcasm--heightened by the innocent image of a stereotypical college building. See "Now Your Town Can Have a 'Professional Riot!'" for a more absurdist version of the same idea.