I was so pleased to hear someone use criterion, the doomed singular form of criteria and correctly at that.
When I got to a computer with an Internet connection, I went online to read the transcript of the entire conversation and was shocked to see that the transcribed version at NPR was erroneous:
Did you see that? Someone decided to (presumably) correct what Mr. Stewart had said and, in doing so, produced a version that is incorrect and does not do justice to Mr. Stewart's rather carefully correct usage. I have to admit that I didn't expect something like this from NPR.