Presented by John Humphrys and Edward Stourton. President Obama has outlined a new strategy for fighting al-Qaeda and Taleban militants. Correspondent Barbara Plett describes the reaction in Pakistan. Thousands of people march through London to demand 'jobs, justice and climate' ahead of the G20 summit. Jane Hadden reports from central London. Morgan Tsvangirai, the Prime Minister of Zimbabwe, has issued a warning that anyone who invades the country's commercial farms will be arrested. Wilf Mbanga, editor of The Zimbabwean newspaper, discusses whether the comments will bring conflict. Liberal Democrat MP Evan Harris has put forward a bill to amend the laws of succession. Correspondent Mark D'Arcy reports on the reaction in parliament. Dr Sushil Wadhwani CBE and Sir Howard Davies of the LSE discuss the Governor of the Bank of England, Mervyn King's performance during the economic downturn. Reporter Sanchia Berg talks to three children about the appeal of the classic children's book 'Le Petit Nicolas'. Thought for the day with Catherine Pepinster. Professor Andrew Hunt discusses whether the new GCSE science exams reflect the content of the new courses. President Obama has announced his new strategy for Afghanistan. Jason Burke, correspondent for the Observer, speaks to some of the troops there. Brendan Barber, General Secretary of TUC, discusses the policy changes that a coalition of campaigners called 'Put People First' would like to see implemented after G20. James Naughtie looks back at the events that led to Margaret Thatcher's victory over Jim Callaghan 30 years ago. Deputy Chairman of the British Phonographic Industry Mike Batt discusses the problems faced by musicians due to lack of copyright protection. Rape victim 'Rebecca' describes how she was treated by police. Brian Paddick, former Deputy Assistant Chief Commissioner of the Metropolitan Police, discusses the reasons for police failings in dealing with rape cases. President Obama has announced that it will send funds to Pakistan to help build up the country's infrastructure in exchange for help in tackling terrorism. Author Tariq Ali discusses the plan. Gordon Brown has been on a five-day, three-continent trip ahead of the G20 summit with the intention of drumming up support for his economic policies. Political editor Nick Robinson considers how successful he has been. Russian President Dmitry Medvedev has hinted on television that Russian 'anti-terror' operations in Chechnya will soon come to an end. Professor Mark Almond discusses the President's remarks. Professor Richard Wiseman and Dr Ciaran O'Keeffe, presenter of TV's 'Most Haunted', discuss people's enduring belief in ghosts.