Amanpour: David Cameron, Samuel Burke and Julia Marcus

David Cameron, former British Prime Minister, discusses his call to action for energy investment in fragile states where the pandemic has hit the hardest. Samuel Burke, host of "Suddenly Family", discusses his family's shocking DNA discovery that led to making a podcast about other lives turned upside down by at home genetic tests. Our Hari Sreenivasan talks to Julia Marcus, Infectious Disease Epidemiologist at Harvard University, about how to mitigate the risk of covid in a sustainable way.

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