Vaccinations have helped ease national lockdowns, but restrictions on international travel remain severe. When and how might they be lifted? Willie Walsh of the International Air Transport Association tells us airlines are a soft target for government restrictions. Aerosol physicist Lidia Morawska assesses how risky it is to travel by plane. The Economist’s Miki Kobayashi reports on July’s Tokyo Olympics. Alok Jha and Slavea Chankova are joined by Edward Carr, The Economist’s deputy editor. For full access to The Economist’s print, digital and audio editions subscribe at economist.com/thejabpod. Sign up for our new weekly science and data newsletters at economist.com/simplyscience and economist.com/offthecharts   See acast.com/privacy for privacy and opt-out information.