Technology vs 'terrorism': Circuits of city surveillance since September 11th

The events of September 11th bring urgency to problems of urban security, both in terms of finding ways to protect cities from attacks by terrorists and also protecting urban life from repressive measures that form in reaction to those attacks. We outline a rationale for urbanists to participate in analysis and policy-formulation on security issues and examine the utility of past urban research strategies, including criminology, in terms of their relevance to the current challenge. We suggest principles to guide future urban policy in light of past experiences.