Author Joan Dye Gussow talks about the benefits of organic foods. She suggests growing healthy foods in your own garden. Her book is "This Organic Life: Confessions Of A Suburban Homesteader".
Research groups at the University of Michigan are developing a vehicle called the "Mars Rover" for scientists to use on the planet. Team project manager Anna Paulson talks about how the vehicle will be used.
Writer Lucy Kaylin talks about the roles and responsibilities of nuns, and the historical and cultural forces redefining their roles. Kaylin's book is called "For The Love Of God : The Faith And Future Of The American Nun".