Tech Tent 70: Spy-wear?

Dr Chris Brauer from Goldsmiths, University of London, on how big brands want to sell us things via wearable devices. Bruce Schneier, security and privacy expert and author of the book "Data and Goliath", warns of the threat of companies and governments misusing data about us. Emily Bell, from the Tow Centre for Digital Journalism, on Verizon's buyout of AOL, and Facebook's instant articles. And Zoe Kleinman spends a night alone in a house full of robots.

Presented by Rory Cellan-Jones, with Fiona Graham and Dave Lee from the BBC Online tech desk.