The Ethics of Indiscriminate Surveillance

Have security professionals helped make the privacy of citizens around the world ‘collateral damage’ in the hunt for terrorists?

Due to Edward Snowden’s disclosures we are now aware that millions of people have been unwittingly monitored by systems of indiscriminate surveillance. Many of these systems, having been developed in secret, were only possible due to the support of a large number of security professionals. We can suppose that the creators and operators of these systems are attempting to achieve legitimate objectives on behalf of their respective societies. What is less clear is if these systems do more harm than good or if the costs and risks of these activities have been fully understood, let alone accepted by the societies that bear the costs. Do the costs and potential harms of indiscriminate systems outweigh the benefits? Has privacy been compromised without due cause? If so, is it ethical for security professionals to support such systems?