Smart video on trains, buses and subways: beware of the "ratchet effect," interview by Winston Maxwell.

Summary Intelligent video in buses and subways, on-board cameras, drones, the French National Commission for Information Technology and Civil Liberties (CNIL) is calling for a general law on the implementation of these new technologies, an essential measure to guide the development of tomorrow's smart cities. The government has authorized the deployment of intelligent video systems in public transport.