Trust is crucial in areas of medicine and health. But what sort of explicit consent should doctors obtain before medical treatment? Onora O'Neill) discusses the place of trust in areas of bioethics with Nigel Warburton) in this episode of the Philosophy Bites) podcast (originally on Bioethics Bites), a series made in association with the Oxford Uehiro Centre for Practical Ethics) and made possible by a grant from the Wellcome Trust)).