WHO says COVID originated in bats, but critics claim bias

The PBS NewsHour has obtained a study by a group of independent researchers convened by the WHO to find the origins of COVID-19 in China. As Nick Schifrin reports, the virus that caused the worst pandemic in a century most likely started in bats, and jumped to humans through an intermediate animal host. The researchers call it a starting point, but their critics still say it doesn’t go far enough.