Presented by James Naughtie and Sarah Montague.
Energy analyst Jonathan Stern reacts to claims that gas supplies to Bulgaria have been turned off.
Katya Adler reports from Gaza's border and Dr Musa el Haddad, a retired physician who lives in Gaza City, explains his experiences of the ongoing conflict
Greg Wood investigates how US financial regulators missed the repeated warning signs about the business practices of Bernard Madoff.
Simon Rubinsohn, chief economist at the Royal Institution of Chartered Surveyors, discusses how surveyors are coping with the economic downturn.
Journalist Colin Freeman discusses how he was abducted while reporting on piracy in Somalia in November.
Thought for the day with Dr Indarjit Singh.
Andrew Baker of the Alternative Investment Management Association and Lib Dem treasury spokesman Vince Cable discuss if short-selling should be introduced into trading.
Former Prime Minister Tony Blair, now a Middle East envoy, says an immediate ceasefire could be reached in Gaza.
Nick Robinson explains how the Conservatives would pay for a proposed tax cut.
Tom Brook reports on the British films likely to appear in the Oscar nominations.
James Rodgers in Moscow and Chris Mason in Brussels discuss views on energy supplies across Europe.
Former colleague Mikael Ekman and fan Joan Smith discuss the Swedish crime novelist Stieg Larsson.
Sir Alan Walters, the man best known as Margaret Thatcher's economics guru, has died at the age of 82. Professor Patrick Minford of Cardiff Business School discusses Mr Walters views on recession.
Dore Gold, former Israeli ambassador to the UN, and Price Hassan of Jordan discuss if some Arab governments would like to see Israel succeed in Gaza.