Big bother: Facebook scandal highlights how firms manage user data

Facebook is at the centre of a political firestorm after reports that information about millions of users have ended up in the hands of a political research firm. Stephen Carroll speaks with Sylvestre Ledru, the head of the French branch of Mozilla, about why privacy matters. Also on the show, we look at how emerging economies are forging their own trade deals. Plus, we meet the CEO of a Swedish company that forces its employees to exercise during office hours.