Gordon Brown has defended Labour's immigration policy in a speech in Spitalfields in east London. Home affairs editor Alan Travis assesses the PM's claims on Labour's record on immigraiton, while Spectator editor Fraser Nelson explains why it's Labour rather than the Tories who are raising the subject of immigration ahead of the election.
Arts correspondent Mark Brown describes the looping tower designed by Anish Kapoor whose designs were unveiled by the Mayor of London, Boris Johnson, who hopes the artwork will be the centrepiece of the 2012 Olympics legacy.
Iranian nuclear physicist Shahram Amiri, who went missing last summer during a visit to Saudi Arabia, has reportedly defected to the US. Our diplomatic editor is Julian Borger looks at the intelligence effort against Iran.
Builder Bob Woodward tells the Guardian's Steven Morris why he and his brother spent 10 years recreating a Roman mosaic. Their work is now being auctioned after being displayed at a Gloucestershire abbey.
