from Culture Jamming by Mark Dery
The term "cultural jamming" was first used by the collage band Negativland to describe billboard alteration and other forms of media sabotage. On _Jamcon '84_, a mock-serious bandmember observes, "As awareness of how the media environment we occupy affects and directs our inner life grows, some resist...The skillfully reworked billboard...directs the public viewer to a consideration of the original corporate strategy. The studio for the cultural jammer is the world at large."
Part artistic terrorists, part vernacular critics, culture jammers, like Eco's "communications guerrillas," introduce noise into the signal as it passes from transmitter to receiver, encouraging idiosyncratic, unintended interpretations. Intruding on the intruders, they invest ads, newscasts, and other media artifacts with subversive meanings; simultaneously, they decrypt them, rendering their seductions impotent. Jammers offer irrefutable evidence that the right has no copyright on war waged with incantations and simulations.