Gregory Zuckerman on the Crazy Race to Create the COVID Vaccine

In the race for a COVID vaccine, how did a couple of companies who had never produced a successful vaccine make it to the finish line so quickly? Gregory Zuckerman talks about his book, A Shot to Save the World, with EconTalk's  Russ Roberts about the daring, deranged, and damaged visionaries behind one of science and medicine's great success stories.