Amanpour: Dr. Siddhartha Mukherjee, Mohammad Nahavandian, Parag Khanna and Jon Bon Jovi

Cancer physician Dr. Siddhartha Mukherjee joins Christiane Amanpour to outline why people should be wearing masks to protect against Covid-19, the unusual behaviour of the virus and his new documentary "The Gene." Mohammad Nahavandian, the Iranian VP for Economic Affairs, speaks exclusively about the Iranian government's handling of the crisis and U.S. sanctions. Our Hari Sreenivasan talks to Parag Khanna, author of "The Future is Asian," about the spread of Covid-19 across Asia and how this will impact world order. Jon Bon Jovi, The Rock and Roll Hall of Famer, explains why he invited his fans to help him complete his new song. Entitled "Do What You Can," he began writing the track whilst in isolation and hopes to collate people's varying experiences of the pandemic in an act of solidarity.

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