Finding things out during the pandemic has been hit and miss: there’ve been miracles, and there’s been junk. What matters is not just what we think we know about how to intervene to improve human health, but how we think we know it. Methods can be inspired, flawed, or both. Michael Blastland tells the short and still-changing story of how science has been trying to get better at finding things out. Contributions from: Professor Sir Angus Deaton, Eisenhower Professor of Economics and International Affairs Emeritus at the Princeton School of Public and International Affairs and the Economics Department at Princeton University. Maria Popp. Department of Anaesthesiology, Intensive Care, Emergency and Pain Medicine, University Hospital Wuerzburg. Professor George Davey Smith, Director of the Medical Research Council Integrative Epidemiology Unit at the University of Bristol. Sheena McCormack, Professor of Clinical Epidemiology at University College London Producer: Ben Carter Editor: Jasper Corbett Sound Engineer: Graham Puddifoot

Birth rates in many countries, including China, Japan, Italy and the UK have dropped below replacement level. Clare McNeil asks if we should be concerned about this, and the burden it will place on taxpayers and the young, or welcome it as a good thing for climate change, where some think that the fewer consumers and CO2 emitters the better. But with fertility rates of 1.58 in England and Wales, and only 1.29 in Scotland, society is aging, with the higher healthcare and pension costs to be borne by the taxpayers of working age. What role could or should the government play in increasing the birthrate? Presenter: Clare McNeil Producer: Arlene Gregorius Editor: Jasper Corbett Speakers: Angie Hobbs, Professor of the Public Understanding of Philosophy, the University of Sheffield Lord David Willetts, President of the Resolution Foundation George Monbiot, environmental campaigner and author Felix Pinkert, Assistant professor of Philosophy and Economics, University of Vienna Jacob Hacker, Professor of Political Science, Yale University Jade Sasser, Associate Professor of Gender and Sexuality Studies, University of California, Riverside Ronald Lee, emeritus professor of Demography and Economics, University of California, Berkeley

The shortage of HGV drivers has been hitting the headlines, but other sectors are affected by a lack of staff too, from care homes to restaurants. This despite wages going up, and the end of the furlough scheme. What's going on? Could it be that power is shifting away from employers to workers, for perhaps the first time since the 1970s? Since the 2008 financial crisis public opinion has increasingly been unfavourable towards globalisation, immigration and big corporations. This has been reflected in a shift away from an assumed pro-business stance among the mainstream political parties too. Philip Coggan speaks to a range of experts to find out what's been happening, whether workers really will gain more power, and what that might mean for the economy. Guests: Ben Clift, Professor of Political Economy at the University of Warwick Dame DeAnne Julius, Distinguished Fellow for Global Economy and Finance, Chatham House Kate Bell, Head of Rights, International, Social and Economics at the Trades Union Congress Rob Ford, Professor of Political Science at the University of Manchester Jonathan Portes, Professor of Economics and Policy at King’s College, London Kate Nicholls, chief executive of UK Hospitality Shereen Hussein, Professor of Health and Social Care Policy at the London School of Hygiene and Tropical Medicine Gerwyn Davies, Public Policy Adviser and Senior Market Analyst at the Chartered Institute of Personnel and Development Producer: Arlene Gregorius Sound: Gareth Jones

Splitting up where children are involved is tricky. Especially when it ends up in the family courts. It’s even more tricky when a child decides they don’t want a relationship with one of the parents. Over the last two decades a controversial psychological concept has emerged to describe a situation where children - for no apparent reason - decide they don’t want to see one parent. It’s called parental alienation. Women’s rights organisations argue parental alienation is used to gaslight abused women. Fathers’ rights organisations claim that some mothers make up allegations of abuse to prevent them from seeing their children. And children are caught in the middle. Sonia Sodha explores the polarizing concept of “parental alienation” and asks how a contested psychological theory has evolved into an increasingly common allegation in the UK family courts. Producer: Gemma Newby

When you listen to a radio programme, watch an animated film, or even receive a phone call, it’s unlikely you’ll question whether the words you’re hearing are coming from the mouth of a human being. But all that could be about to change thanks to the rise of ‘voice cloning’. Elaine Moore is a tech columnist at the Financial Times and she’s interested in the ramifications of this new technology. Thanks to artificial intelligence, cloning a human voice can be achieved with just a few minutes of recorded audio. As the technology becomes more sophisticated and its use more widespread, how will this affect our society, our politics and our personal interactions? And is it time we were able to control what happens to our own voice both now and when we die? With contributions from: Carlton Daniel, lawyer at Squire Patton Boggs. Tom Lee, co-founder of LOVO. David Leslie, Ethics Theme Lead at the Alan Turing Institute. Rupal Patel, founder & CEO of VocaliD. Tim McSmythurs, AI Researcher and creator of Speaking AI. James Vlahos, co-founder of HereAfter AI. Producer: Craig Templeton Smith Editor: Jasper Corbett