Transcription: I check all my lecture audiences and I've spoken at more than 600 colleges, 100 professional groups in 50 states and 9 provinces of Canada. Typically, at the end of my lecture of course, typically 10% believe they've seen one, but only 1 in 20 of that 10% has reported what he has seen. This matches pretty closely Gallup polls which again show about 10% believe they've seen one.
(.mp3)
