Although surveillance hit the headlines with revelations by Edward Snowden that the NSA had been tracking phone calls worldwide, surveillance of citizens by their governments actually has been conducted for centuries. Only now, with the advent of modern technologies, it has exponentially evolved so that today you can barely step out your door without being watched or recorded in some way. In addition to the political and security surveillance unveiled by the Snowden revelations, think about corporate surveillance: each swipe of your ID card to enter your office is recorded, not to mention your internet activity.