I just heard an interview of a woman named Mary Rodwell of the Australian Close Encounter Resource Network. She came across as a level-headed and rational person, and investigates particularly the abduction phenomenon. I think she would have an interesting perspective to add to the puzzle. Check her out, I think she would be an interesting guest.
Raymond Teauge a NASA electrical engineer would be an interesting guest. he can tell us about the early apollo missions. he has come forward with very interesting information about ruined film and radiation levels in space.