When does flirting go too far? In a changing world, can we agree on what is acceptable behaviour? Sexual harassment is much in the news, new laws and codes are in place. Legal definitions are one thing, but real life situations can be a lot messier and more uncertain. Mixing expert analysis of the issues with discussion of everyday scenarios, Jo Fidgen asks: what are the new rules of relationships?

Edward Stourton asks how the European Union might change after Britain leaves. "The wind is back in Europe's sails", according to European Commission President Jean-Claude Juncker. In September, in his annual address to the European Parliament, he set out a bold dream for the future. Soon afterwards it was echoed by another, this time from French President Emmanuel Macron who declared that "the only path that assures our future is the rebuilding of a Europe that is sovereign, united and democratic". Amongst the proposals that the two leaders put forward were a European budget run by a European finance minister, an enlargement of the Schengen passport-free travel zone, and much closer collaboration on tax, defence, and a host of other issues.

But at present, the European project faces huge challenges. Britain is about to leave the EU, whilst Catalonia's bid for independence is causing turmoil in Spain. In the face of such developments, how realistic are the grand visions that Europe's leaders have for the future of the continent?

Producer: Neil Koenig.

What does the dangerous state of the Houses of Parliament tell us about our politics? There are increasing fears of a catastrophic fire, asbestos leak or major systems failure in the famed buildings. But after years of warnings, MPs and Lords are still struggling to decide what to do. Some say Parliament must remain active in the buildings while urgent work is done. Others say they must be vacated for renovation - and that this is an opportunity for a complete rethink of how our parliamentary democracy functions.

Chris Bowlby visits the buildings' secret and hazardous corners and talks to key figures in the debate, discovering a story of costly but revealing political paralysis

Producer: Chris Bowlby

From driverless cars to "carebots", machines are entering the realm of right and wrong. Should an autonomous vehicle prioritise the lives of its passengers over pedestrians? Should a robot caring for an elderly woman respect her right to life ahead of her right to make her own decisions? And who gets to decide? The challenges facing artificial intelligence are not just technical, but moral - and raise hard questions about what it means to be human.

Presenter: David Edmonds

What could spark a major conflict on the world's most sensitive front line, and just how devastating would it be? Alarm about North Korea has spiked. It claims to have successfully test-launched an intercontinental ballistic missile that could hit Alaska. Some experts estimate that North Korea is now 18 to 36 months away from launching a missile able to reach Los Angeles. President Trump has threatened to "totally destroy" the country, in an exchange of increasingly belligerent messages from both sides. Neal Razzell takes a look at the two sides' war plans and asks: what would war with North Korea look like?

Producer: Sarah Shebbeare.

Will technology radically reshape the highly profitable world of finance? Technology can revolutionise industries, making goods and services cheaper and more accessible. Television is going the same way with online services such as Netflix and Amazon Prime providing thousands of movies and boxsets. From the point of view of the consumer the picture is the same - we tend to have more choice and pay less money. Profits get squeezed. Yet there's one service we buy that seems to be a glaring exception - finance. Philip Coggan of The Economist asks whether the rapidly growing financial technology sector is about to change all that, creating a future that's much less comfortable for City fat cats, but better for everyone else.

Producer: Ben Carter

(Photo: Tech Globe on hand. Credit: Shutterstock).

'The Fix' brings together twelve of the country's bright young minds and gives them just one day to solve an intractable problem. This week we have asked our teams to come up with ways to stop criminals re-offending when they leave prison. The day is introduced by Matthew Taylor, Chief Executive of the RSA and the teams will be led through the day by Cat Drew, Director at design consultancy Uscreates. Can the teams do enough to impress our judges, Dawn Austwick, Chief Executive of the Big Lottery Fund and David Willetts, former minister and Executive Chairman of the Resolution Foundation, or will they fall short?

The teams have just one day to find solutions to the problem of childhood obesity

In the first of a new series, twelve of the country's brightest young minds gather to solve difficult social problems. This week - how do we improve access to affordable housing? Using policy planning techniques used by governments around the world, three teams are given free reign to think the unthinkable. They then present their ideas to two judges, who'll interrogate them and pick the best. Presented by Matthew Taylor and facilitated by Cat Drew of Uscreates Team One: Oliver Sweet - runs an ethnographic research department at Ipsos MORI. Margot Lombaert - creative director of Margot Lombaert Studio, an independent graphic design practice. Ethan Howard - RSA award winner. Jack Minchella - research and design associate at the Innovation Unit and the founder of the urban research collective In-Between Economies based in Denmark. Team Two: Solveiga Pakštaitė - industrial designer specialising in user-centred design. Gemma Hitchens - Account Director at Signal Noise, which specialises in data visualisation and analysis. Jag Singh - tech entrepreneur and former political strategist. Hashi Mohamed - barrister at No5 Chambers. Team Three: Helen Steer - educator and maker who runs Do It Kits, a start-up that helps teachers use technology. Zahra Davidson - designer with a background spanning service design, social innovation and visual communication. Piero Zagami - information designer and consultant in graphic design and data visualization. Tobias Revell - artist and lecturer in Critical and Digital Design.

David Anderson examines the government's controversial counter-terrorism strategy Prevent