PLEASE NOTE: We are unable to offer transcripts for our programme interviews. Today is broadcast live and the running order is subject to change.
Gordon Brown has admitted recent events have been among the worst in his political life and made him think he could "walk away from this tomorrow". And US President Barack Obama has told Iran that "the world is watching", after its supreme leader demanded an end to post-election demonstrations.
More than 50 MPs have claimed expenses for council tax they have not paid, the Daily Telegraph says. Political correspondent Ben Wright reports on the launch, by the police, of a criminal investigation into the alleged misuse of expenses by MPs.
The military offensive against Taliban militants entrenched in north-western Pakistan is nearly over, the defence minister has said. Pakistan Interior Minister Rehman Malik discusses if this means the defence budget - which accounts for 60% of the national expenditure - can be cut.
Iran's supreme leader Ayatollah Ali Khamenei has said protest leaders would be responsible for any "bloodshed" if rallies in the country continued following disputed election results. Correspondent Jon Leyne considers what this means for opposition groups and whether protests will continue.
Listeners to the Today programme have been asked to suggest how the NHS could save money. In one email, The British Medical Association (BMA) has suggested cutting the private sector out of the system and abolishing market-based reforms. Hamish Meldrum, of the BMA, and Susan Anderson, of employers' organisation the CBI, discuss how much could be saved if these ideas were implemented.
The secretary general of Amnesty International has criticised Zimbabwe's Prime Minister Morgan Tsvangirai, saying she saw "no sense of urgency" in the power sharing agreement to deal with human rights. Irene Khan considers whether her requests for all party activists to stop harassment and intimidation were ignored.
Formula 1's governing body, the FIA, says it will begin legal proceedings over plans to set up a rival world championship. Correspondent Arlo White follows Brawn GP, one of the eight breakaway teams, to gauge the team's fortunes as the remarkable season unfolds.
The UN refugee agency, UNHCR, says global displacement stood at 42 million at the end of 2008. Correspondent Mike Wooldridge visits a refugee camp south east of Peshawar with 104,000 inhabitants - half of all the refugees who are living in camps in Pakistan.
US President Barack Obama has told Iran that "the world is watching", after its supreme leader demanded an end to post-election demonstrations. Correspondent Jon Leyne reports on the big demonstrations still expected. Kasra Naji, special correspondent for BBC Persian Television, and Patrick Coburn, of the Independent, discuss Iran's supreme leader's call for an end to protests.
Is the "i before e except after c" rule worth teaching? Jack Bovill, chairman of the Spelling Society, and English lecturer Bethan Marshall, of King's College, London, discuss new guidance for primary schools suggesting there are simply too few words that follow this rule.
After 9/11, George Bush told the world "you're either with us or against us". Ever since, Pakistan has been struggling to reconcile with this request to take sides in the so-called "War On Terror". John Humphrys considers how the country has struggled with the choice of which side they are on.
The long-awaited Acropolis Museum in Athens is to be unveiled. Arts correspondent Lawrence Pollard reports on whether the British Museum should return the Elgin Marbles which were taken from the site in the early 19th century. Journalist Christopher Hitchens discusses the £110m modern glass and concrete building at the foot of the ancient Acropolis, housing sculptures from the golden age of Athenian democracy.
Gordon Brown has admitted recent events have been among the worst in his political life and made him think he could "walk away from this tomorrow". Fraud expert Michael O'Kane, of the London law firm Peters and Peters, examines whether a police investigation into MP expenses could lead to convictions.
When a state is threatened by a foreign power its people rally behind the flag. But what happens when the threat comes from within? John Humphrys examines how the Pakistan risks turning from a nation back into a crowd.
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