Mass Surveillance is already firmly embedded in citizens' lives. Our phones are tapped, emails read, streets filmed. Social media encourages us to spy on one another. Corporate entities such as Google are rapidly advancing the capabilities of the NSA and other government spy apparatus. Our personal data is already a traded commodity.
Try to imagine a new surveillance scenario - one we haven't yet encountered or possibly one (that does exist) that we haven't yet thought about. For example, workplaces are increasingly gathering employees' health and fitness data and using it to determine output and salaries, amongst other things.