PODCAST OF IDEAS: Europe might be the epicentre of the coronavirus pandemic at the moment, but this is a global problem. Alastair Donald, co-ordinator of our international Battle satellites, talks to friends and speakers from our annual festival: the Battle of Ideas. From Singapore: Stuart Derbyshire is the associate professor in psychology at the National University of Singapore and the Clinical Imaging Research Centre. From upstate New York: Nancy McDermott is an independent researcher with a special interest in the family, parenting, science and the public-private spheres. From Sweden: Johan Wirfält is the artistic director of talks, debates and film at the Kulturhuset Stadsteatern. And from Johannesburg: Matthew Kruger is a law consultant specialising in corporate, constitutional and human-rights litigation.