Joe Nickell, Senior Research Fellow for CSICOP, is considered the world's leading paranormal investigator. A former professional stage magician and private investigator, he has used his varied background to investigate myths and mysteries, frauds, forgeries, and hoaxes. He has been called "the modern Sherlock Holmes," "the original ghost buster," and "the real-life Scully" (after the character in The X-Files). A veteran of hundreds of TV and radio appearances, he is the author of over 20 books, including Secrets of the Supernatural, Entities, Psychic Sleuths, Real Life X Files, and The UFO Invasion.

In this discussion with DJ Grothe, Joe talks about his recent trip to Peru for CFI's second South American conference, and also about his visit to the world famous Nazca lines, which some people argue is evidence for ancient visits to earth from extra-terrestrials. He recounts his years of investigations into such "geoglyphs," and suggests some alternative scientific theories for their existence.

Also in this episode, Debbie Goddard, a campus organizer with the Center for Inquiry, gives a back-to-school message.