A rundown of stories from Friday 12 April including programme highlights and comment.
Insight, analysis and expert debate as key policy makers are challenged on the latest news stories.
Friday 12 April
David Cameron will meet Angela Merkel later to discuss the future of the EU. Smartphone gaming apps aimed at children which charge for bonus content are being investigated by the OFT, as parents complain of huge bills. And the British theatre production Matilda The Musical has opened on Broadway.
0900Our editors this morning were Jat Gill and Lewis James. Thank you for all your feedback. Coming up next on BBC Radio 4: The Reunion brings together the original cast of Doctor Who. (Listen to a preview clip below). Good morning.
The BBC class survey got 6.9m page views, making it the most looked at news story on the BBC news website of 2013. Adam Nicholson, author of The Gentry: Stories of the English, and Juliet Gardiner, a British historian, discuss the history of the UK's interest in class.
A new study shows significant similarities between the way that the brain regulates behaviour in arthropods (eg. flies and crabs) and vertebrates. Frank Hirth of the Institute of Psychiatry, explains the research.
Psy, the rap star who released the song Gangnam Style, is releasing his latest song Gentlemen today. Boff Whalley, former member of Chumbawamba the band, and Debs Wild, who works for Coldplay, discuss the pressure of following up a global smash hit.