The Guardian: Main section

Extremist group's death warning leads TV network to censor 201st episode, to fans' dismay

Conservative leader scores big hit during leaders' debate with accusation of 'lies' about policy on pensioners

Oliver Burkeman: His strategists had evidently decided that the best defence is a good offence

Conservatives deny orchestrating attack on Liberal Democrat leader before second big television debate

Guardian survey reveals significant increase in the electorate, especially among young people, which could see 6 May turnout soar

• No priority for customers waiting in India and China
• Advice is to book online and reclaim ticket costs

Scientists to look for increased risk of a range of conditions in study spanning five countries, including Britain

• "Where's the cash? Can I dig you up?" – Steve Jones
• "On this cruel, cruel day … Get a life!" – Vivienne Westwood

Development could lead to treatments tailored to different diseases, say research groups

Sale of Degas, Derain, Cézanne, Gaugin, Picasso and Renoir works hidden since 1939 then argued over for a generation

Transcript from coroner's inquest after legendary gunfight involving Wyatt Earp and Doc Holliday found by court clerks in Bisbee, Arizona

Dutch-speaking Liberals quit Cabinet, accusing Francophones of blocking deal to break up voting district

Thxa Soe's music gives country's youth a focus for dissatisfaction with the junta despite strict censorship

Microsoft billionaire disappointed that wealthiest nations have not given more aid

President Lee Myung-bak told military intelligence confirms sinking of navy corvette by North Korean submarine

President's gloves-off speech condemns Wall Street as a moderate Republican moves to support financial transparency

Lord Kirkham, former Conservative treasurer, sells sofa empire to Advent International weeks after denying it was up for sale

Intissar Kherigi: Belgium's attempted veil ban is another case of politicians' failure to talk directly to Muslim women

Britain's rightwing papers in a spin over possibility that they might have backed wrong candidate

Martin Kettle: David Cameron and Gordon Brown both went up a gear – but Nick Clegg impressively kept the Lib Dems in the hunt

<strong>Editorial:</strong> The second party leaders' debate did not produce a clear winner. This election will go down to the wire

Flamboyant cult German director, belatedly appreciated

Almeida, London
Lynn Nottage's play arrives in London laden with American honours. And rightly so, since it offers a graphic portrait of women as perennial victims of war, writes Michael Billington

Queen Elizabeth Hall, London
More than once during Broadcast's ethereal, hour-long show, the Disney film The Little Mermaid comes unexpectedly to mind, writes Maddy Costa

Watford Palace
Trudie Goodwin and Morgan Watkins shine in this production of Gary Owen's clever play, which chips away at the stereotypes of marauding youth and fearful elderly folk, writes Lyn Gardner