CARL KASELL: From NPR and WBEZ-Chicago, this is WAIT WAIT...DON'T TELL ME!, the NPR News quiz. I'm Carl Kasell. And here again is your host, at the Chase Bank Auditorium in downtown Chicago, Peter Sagal.
Francis Collins is a pretty good scientist. He unraveled the human genome, among other parlor tricks and now he's the head of the National Institutes of Health. We started our visit with him by asking him what the heck that is.