As a trial of the revised English coronavirus app gets under way, many of us will be watching closely to see what it can and cannot do, and whether it could help to contain Covid-19. But alongside issues of efficacy are other, deeper questions about what this technology means for the citizens who use it – today and in the future. Split over two episodes, Ian Sample talks to Carly Kind and Seeta Peña Gangadharan about data privacy, the involvement of Google and Apple, and if we should expect track-and-trace apps to become a normal part of our lives. Help support our independent journalism at <a href="https://www.theguardian.com/sciencepod">theguardian.com/sciencepod</a>
