Welcome to the world of automatic surveillance
Smart cameras, iris scans, databases: Welcome to the world of automatic surveillance. In this edition, we tell you what kind of technologies are being developed to track terrorist suspects. Plus, for those of you who haven't had a good night’s sleep in a while, we test the smart headband Dreem by French startup Rythm. It's not just any sleep wearable, it's a gate into the age of neurotechnology.