RAND reports are always worth to have a glance (and more). I recently read Project Libra: Optimizing Individual and Public Interests in Information Technology (.pdf) by Edward Balkovich, Tora Bikson, David Farber, Robert Kraut, James Morris, Peter Shane, Joel Smith, CP-477, 2004.

This document describes the vision for a program of research to investigate policy implications of emerging information technologies. The research would explore capabilities of future systems of wireless technologies and sensors that implement appropriate protections of privacy and civil liberties; experiment with decisionmaking processes that optimize the balance between privacy concerns and the public and personal benefits of these information technologies; and examine the mutual adaptation of attitudes, behaviors, policy, and technology that come about with experience. Project Libra was conceived as a joint research activity of the RAND Corporation and Carnegie Mellon University