What's happening

Today Former special adviser Adam Smith and DCMS permanent secretary Jonathan Stephens appear before the Leveson Inquiry

Today The Scottish National Party launches the campaign for a 'yes' vote in the referendum on independence

Today David Willetts visits Edinburgh University and speaks at the Horizon 2020 conference at Holyrood

Today Vince Cable visits Dusseldorf

19.30 The Stop the War coalition hosts a 'Don't Iraq Iran' cultural event to raise money for campaign against taking military action against Iran. Performers include Brian Eno, Mark Rylanc and Tony Benn

What's been said

Mary Dejevsky in The Independent argues for why the political left should adopt the 'flat tax'

We must defy Strasbourg on prisoner votes, argue Jack Straw and David Davis in the Daily Telegraph

Cameron should know that money in pockets, not austerity, brings growth, says Simon Jenkins in The Guardian

To improve social mobility we must nurture the poorest in society, but nature will always hold some people back, says Philip Collins in The Times (£)