Presented by John Humphrys and James Naughtie. Robert Peston explains why the US government has stepped in to rescue insurance company AIG. Tom Symonds discusses the sale of Gatwick, London's second-largest airport. Phillip Ward, director for local government services at the Waste Resources Action Programme, discusses new waste disposal ideas. Professor Ian Fells and US Deputy Energy Secretary Jeffrey Kupfer discuss the arguments for increasing the use of nuclear power. Thought For The Day with Rabbi Lionel Blue. Labour MP Phil Hope and BBC political editor Nick Robinson discuss how PM Gordon Brown will fare at the Labour party conference. In New York, Sarah Montague interviews Jeffrey Sachs, Professor of Economics and a special adviser to the United Nations secretary-general, about the situation on Wall Street. Head of BAA Colin Matthews discusses the decision to sell Gatwick airport. Author Eoin Colfer discusses the challenge of writing the sixth book in the The Hitchhiker's Guide to the Galaxy series. Tim Franks reports on the candidates most likely to take over Israel's ruling party, Kadima. Winifred Robinson returns to her home city looking at the stereotypical image of Liverpool's inhabitants. She discusses her findings with Liverpool-born poet and broadcaster Paul Farley. Colin Paterson reports on Carla Bruni's appearance on BBC2's Later With Jools Holland. Steven Bell, chief economist at GLC Hedge Fund, discusses how the market reacts to bad news.