David Feldman will be interviewed on Leonard Lopate's Show on WNYC, NPR along with Marshall Brain, the brain behind www.howstuffworks.com.
Friday from 1-2 P.M. E.S.T. (probably won't get on until 1:15 or so). You can listen live (and possibly archived) here:
David is author of the Imponderable books, and always interesting. I believe you'll be able to call in with questions.