“Only the myopic magnifying lens of the television camera maintains the demonstration, march, and picketing as a modality of political expression; they have otherwise faded into meaninglessness since the end of the Vietnam War with the shift of urban form and activity. These acts and activities have been displaced over the past decade from the square and main street to the windswept emptiness of City Hall Mall or Federal Building Plaza. To encounter a ragtag mob of protesters in such places today renders them enve more pathetic, their marginality enforced by a physcial displacement into so unimportant, uninhabited, and unloved a civic location. ”