Don't talk in front of the TV

Samsung's voice-controlled TVs raise worries over privacy as the company warns owners against holding "sensitive" conversations in front of the sets. BBC reporter Kevin Rawlinson visits the Basque Country to try out a handful of language translation apps, and we speak to Luis Von Ahn, the creator of the language-teaching service Duolingo. The UK takes a big step towards trialling automated driverless cars as part of public transport systems in two cities, and announces proposals for the future regulation of autonomous vehicles. Reporter Jane Wakefield takes a ride. And the BBC's Dave Lee considers the question of how random is randomness on the internet? Presented by Rory Cellan-Jones, with special guest Dr Steven Murdoch, Security Researcher at University College, London.