Analysis

Throughout the first half of the 20th century, the working week gradually got shorter and shorter. As technological advances powered economic growth, workers reaped the gains not just in the form of higher pay, but more leisure time. The economist John Maynard Keynes predicted we'd eventually all be working a 15-hour week. Even in the 1970s the expectation that 8 hour days would be reduced to 6 was widely held across the political spectrum. But this all ground to a halt in the 1980s. In this edition of Analysis Sonia Sodha explores the great leisure mystery: whatever happened to this dream of working less? And why is the idea of a 4-day working week gaining traction on the political left in Britain? What would a society that ditches the long-hours culture, and re-embraces the leisure dream look like, and is it really possible to achieve this without increasing inequality between the haves and have-nots of the labour market?

Recent polling data and election results paint a picture of woe for Britain's two main political parties. Of course both Labour and the Conservatives have suffered periods of decline throughout their history. But arguably never before have both parties been so riven by internal divides and suffered such a loss of public confidence at the same time. Edward Stourton looks to historical precedents for guidance on today's political turmoil and asks if the two parties' decline is now terminal. With Tim Bale of Queen Mary University of London; Lord Lexden, official historian of the Conservative Party; Deborah Mattinson of Britain Thinks; Charlotte Lydia Riley of the University of Southampton; John Sergeant, former BBC Chief Political Correspondent; and Adrian Wooldrige, author of the "Bagehot" column at The Economist.

More and more young people now go to university. But what's on offer for those who don't? Public and political attention is far more focused on the university route. Paul Johnson discovers why other kinds of further education and training have been neglected, leaving many young people facing much more difficult choices. Yet the needs of the economy and the choices of many shrewd young people suggest non-university education may be heading for revival. Producer: Chris Bowlby Editor: Jasper Corbett

How do the authorities, business and the public perceive and respond to the risk of violent terrorism? With unprecedented access to the work of an active MI5 officer, home affairs correspondent Dominic Casciani discovers the depth of the challenge facing the security services. Just how do MI5 operatives go about filtering hundreds of weekly tip-offs into a few key leads? In a world of online radicalisation and increasing hate crime, how can they prioritise those that pose a real and immediate threat to the public, and avoid wasting resources on red herrings and keyboard warriors? He also hears from: - Paul Martin, who led security preparations for the London 2012 Olympics - Nicola Benyahia, whose son was radicalised and killed fighting in Iraq - Dr Julia Pearce, expert on communication and terrorism at King's College London - Brigadier Ed Butler, Head of Risk Analysis at Pool Re - Rizwaan Sabir, expert on counter-terrorism and political Islam at Liverpool John Moores University Would we be safer if we knew more about the threats that face us, or should we be kept in the dark? Presented by Dominic Casciani Produced by Beth Sagar-Fenton

David Edmonds examines how algorithms are used in our criminal justice system, from predicting future crime to helping decide who does and doesn’t go to prison. While police forces hope computer software will help them to assess risk and reduce crime, civil rights groups fear that it could entrench bias and discrimination. Analysis asks if these new computer tools will transform policing - and whether we need new laws to regulate them. Contributors Archive from Cable-Satellite Public Affairs Network Jonathan Dowey, business intelligence manager, Avon and Somerset Police Hannah Couchman, Advocacy and Policy Officer, Liberty Professor Lawrence Sherman, Institute of Criminology, University of Cambridge Bryanna Fox, Associate Professor of Criminology University of South Florida Dame Glenys Stacey, The Centre for Data Ethics and Innovation Jamie Grace, Senior Lecturer in Law, Sheffield Hallam University Producer: Diane Richardson Editor: Jasper Corbett