Night Waves

Bidisha is joined by Newsweek's London bureau chief, Stryker McGuire, to assess Oliver Stone's film W, a portrait of George W Bush. The discuss the man and his legacy as US president. With philosopher Raymond tallis and neuroscientist Christ Frith debating the notion that the brain is overestimated, and Francis Hodgson of Sotheby's and The Guardian's former picture editor Eamonn McCabe on what makes a 'green' photo. Plus an unusual collaboration between astronomer Anita Richards and poet Neil Rollinson.