Nathanael Johnson is a freelance writer living in San Francisco who has written for Harper's Magazine, NPR, New York, Outside, This American Life,and others. He is currently writing a book that reveals the kernels of truth amid the misinformation on natural birth, natural foods and natural medicine. The working title is "The Heidi Hypothesis: Finding balance in an age of ecological anxiety"
http://theheidihypothesis.blogspot.com/