Today's first guest is Dr. Daniel Dennet: Is religion a byproduct of evolution?

Following Dr. Dennet is Dr. Steve Pinker: How much of our behavior is determined by genes?

Today's guest is Lester Brown discussing the "State of the World."

Guests today are Dr. Ken Croswell with the "Future of Astronomy" and Dr. Arthur Caplan with the "Future of Medicine."

w/ guest Michael Shermer