“…The widespread use of biometrics for tracking and profiling purposes could, first, increase the visibility of individual behavior and make possible the matching of a person's behavior against pre-determined patterns to generate suspicion or classify individuals in new ways; second, expose individuals to politically damaging or personally slanderous disclosures, blackmail, or even extortion, thus harming openness and democracy; third, expand the range of circumstantial evidence available for criminal prosecution, arguably inflating the prospects of wrongful conviction (though proponents of biometrics point to the improved ability to track a suspect back to the scene of a crime); and lastly, aid in repressing easily locatable and traceable individuals, thus empowering official authorities, as well as corporations, to deal a heavy hand against "troublesome" opponents, such as competitors, regulators, union organizers, whistleblowers, protestors and activists, customers, and political candidates (Ackleson 2005).…”