In response to the question “is it possible to imagine cities with a culture of participatory sharing in which public space is utilized to literally serve the public?” based on the reading by Cahill it is not possible. Based on the culture we live on prejudice and suspicion had always been around. It has been around for years and there is still no solution to this unfortunate problem. It is sad how we cant send of our kids to school without having to be worried about something happening to them. The term “fit the description” is a very repulsive statement which in fact we can’t do anything about. There are good people and bad people out on the street how do you distinguish which from which? I understand both sides to the argument and what I can suggest is for cops to undergo a longer undercover surveillance before assuming that person “fits the description”.