BONUS EPISODE: Covid Cause Most Likely a Lab Leak, Report Says

A report in the Wall Street Journal says the Energy Department has shifted its view on the origins of Covid-19. It now sees a leak from a lab in Wuhan as the most likely source of the outbreak.  For insights, we speak to Andy Pekosz, professor of molecular biology and immunology at the Johns Hopkins Bloomberg School of Public Health.See omnystudio.com/listener for privacy information.