Today's running order
We are only days away from the proper start of the US election campaign - the Iowa caucuses. They had another debate last night and the BBC’s Kim Ghattas was watching.
Tim Peake will embark on his first spacewalk today from the International Space station to make essential repairs. Libby Jackson is the manager of the UK Space Agency's Astronaut Flight Education programme.
The National Association of Head Teachers has strongly criticised the school planning system in England, describing it as fragmented and confusing for parents. Tony Draper is president of the National Association of Head Teachers.
NHS staff who look after organ transplants say more than 500 families in the UK have refused organ donation since 2010, even though their deceased relative had joined the official register. James Hardie is specialist nurse of Organ Donation for NHS Blood and Transplants and Sally Johnson is NHS Blood and Transplant's director of Organ Donation and Transplantation.
The so-called Islamic State (IS) has said it was behind a series of explosions and gun attacks in the Indonesian capital Jakarta. Jonah Fisher is our correspondent in Jakarta.
Struggling NHS trusts face tighter controls and closer scrutiny if they are to gain access to a government pot of cash, Health Secretary Jeremy Hunt has said – he joins us live in the studio.
Tadcaster in North Yorkshire was badly hit by the recent floods and the main bridge connecting west and east sides of the town together collapsed. We hear from Adrian Thompson, who owns a building and maintenance company.
The primates of the Anglican communion has suspended the liberal Episcopal Church from full participation in the life and work of the Anglican Communion for three years. Speaking on the programme is general secretary of conservative Anglican group GAFCON and former Archbishop of Sydney Peter Jensen and Bishop of Buckingham Reverend Alan Wilson.
The energy regulator, Ofgem, is calling on energy firms to lower their prices after a two-year decline in wholesale costs. Speaking live in the studio is Dermot Nolan, chief executive of Ofgem, and Laurence Slade, chief executive of Energy UK, which represents the energy industry.
Tim Peake will embark on his first spacewalk today from the International Space station to make essential repairs. Dr Nicholas Patrick is a British-born former astronaut for NASA who flew on two space shuttle missions to the international space station and did three space walks.
Despite his report’s damning verdict on the IAAF, Dick Pound said he believed the IAAF president Sebastian Coe should remain in his post. Speaking on the programme is Sir Craig Reedie, who worked closely with Lord Coe on the London Olympics and is now head of the World Anti-Doping Agency (WADA).
The National Association of Head Teachers has strongly criticised the school planning system in England, describing it as fragmented and confusing for parents. John Coles is group chief executive of United Learning and David Simmons is deputy chair of the Local Government Association (LGA).
Gold, diamonds and sapphires, together worth up to £14m, were taken in the Hatton Garden raid, two thirds of which remain unrecovered. Speaking on the programme is Philip Sinclair, a barrister who represented one of the defendants who was cleared, and Wensley Clarkson, a crime writer who has just published Sexy Beasts: The Inside Story of the Hatton Garden Heist.
All subject to change.