Privacy at Great Cost: An Argument Against Collecting and Storing DNA and Location Data and Other Mass Surveillance

Mass surveillance involves the collection and storage of vast amounts of information, such as DNA samples from the general population, or location data from cell phones towers, aerial surveillance, and other sources, to then be used when a future crime occurs. For example, DNA from a crime scene could be checked against the database to identify a suspect; location data could identify suspects who were at the scene of a crime. Mass surveillance implicates important privacy interests, but it would surely reduce crime and therefore has been defended by those who reject “privacy at all costs.” I also reject “privacy at all costs.” However, while agreeing that privacy is a value that must be balanced against competing values, I argue that requiring everyone to provide a sample of their DNA or keeping track of everyone’s movements would limit the autonomy of vast numbers of people who there is no reason to suspect will pose a threat, and though such policies would make society safer, that is not worth the cost to individual autonomy. After explaining why individuals can have a substantial interest in privacy even if they are not guilty of a crime, by linking that interest to the value of individual autonomy, and drawing on a political theory of liberal pluralism to restrict what counts as a legitimate public interest that might justify mass surveillance, I articulate a method of balancing these competing interests that is more feasible than a utilitarian approach.