The history of recruiting citizens to spy on each other in the United States. [b][/b]Ever since the revelations of whistleblower Edward Snowden, we think about surveillance as the data-tracking digital technologies used by the likes of Google, the National Security Administration, and the military. But in reality, the state and allied institutions have a much longer history of using everyday citizens to spy and inform on their peers. Citizen Spies shows how “If You See Something, Say...