Media conversations about the origin of COVID-19 intensified this week, after President Biden ordered U.S. intelligence agencies to "redouble" efforts to determine whether the virus emerged through cross-species transmission or escaped from a research lab in Wuhan, China. In a highly publicized joint report in February, the World Health Organization and the Chinese government dismissed the lab-leak theory as "extremely unlikely." But since then, more scientists are calling for new investigations, as a consensus forms that both scenarios are still viable. We'll talk about the politics -- and geopolitics--complicating the inquiry into the pandemic's origins.
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