How does surveillance work? Watch via: https://gres.hm/how-surveillance Our alert systems for identifying safety and security threats have evolved over time. As the threat from wild animals diminished, the perceived threat from other humans increased. To defend our territories and our livelihoods, we began to gather intelligence on our enemies, in the hope that being forewarned would give us an advantage. In this lecture, Prof Victoria Baines explores our use of technologies that allow us to kee