Steve Hewlett presents a topical programme about the fast-changing media world. In the wake of news that an NHS nurse has been struck off after filming her patients covertly for a Panorama television programme, Steve is joined by the series editor to discuss the ethics of undercover reporting. He speaks to Lord Chris Smith, chairman of the Advertising Standards Authority, about the most complained about ads, considers Twitter's take on the swine flu epidemic and asks what future there is for commercial radio after one industry executive suggests that a sixth of stations might close in the coming year.