The truth about vultures, with Wayne Grady and Mike Wallace. Grady's new book, "Vulture: Ghastly Gourmet," (Sierra Club Books) describes in words and photographs the life of the vulture. Wallace is the Los Angeles Zoo's vulture specialist. He is the Curator of Conservation and Science at the zoo, as well as being the Condor Species Survival Program Coordinator for the American Zoo and Aquarium Association.