Newsnight - 20/07/2009

In-depth investigation and analysis of the stories behind the day's headlines with Kirsty Wark. Former Work and Pensions Secretary James Purnell gives his first television interview since he resigned from the Cabinet. Plus, an investigation into the use of CCTV in Britain: a senior police officer tells the programme that some forces aren't solving routine cases with CCTV because they don't know how to use it effectively. Science Editor Susan Watts look at if the new swine flu vaccine is safe, and who will get it.