How privately-operated facial recognition in public places threatens privacy, according to campaigners. Plus, why is the shared-office firm WeWork valued at $47bn when it lost $1.6bn last year and has no idea when or whether it will ever deliver a profit. And how the kids' comic The Beano developed its digital strategy. Presented by Rory Cellan-Jones, with BBC tech reporter Zoe Kleinman, and Madhumita Murgia, European technology correspondent at the Financial Times. (Image: Stock image of a security camera against a skyscraper background, Credit: Getty Images Plus).