CCTV - a podcast by BBC World Service

Surveillance cameras were invented so Nazi scientists could observe rocket launches from a safe distance. They've come a long way since then, and are gathering more data about us than ever before. But in a world where millions happily carry smartphones in our pockets, how do we really feel about being watched?

Further episodes of 50 Things That Made the Modern Economy

Further podcasts by BBC World Service

Website of BBC World Service