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.
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