Spine-Tingling Summer "Fiction."

Performer, comic and writer Sandra Bernhard. Some know her from her role in the ABC sitcom "Roseanne;" she also had a successful one-woman off-Broadway show called "Without You I'm Nothing," which was turned into a film and album of the same name. Her HBO special last year, "Sandra After Dark," satirized the old "Playboy After Dark" variety show. She appeared in Martin Scorsese's "King of Comedy," among other feature films. She was also linked as a possible love interest to Madonna.

Dr. Kevin Cahill. He specializes in tropical medicine, and he looks at the role of health in promoting world peace. He is President and Director of the Center for International Health and Cooperation in New york. His work looking at health amid natural disasters and wars has taken him all over the world, from Nicaragua in the 70s to Somalia today. He is the author or editor of 22 books.