Michael Pollan has been described as a "liberal intellectual foodie." He's written multiple books about the new food movement. "Omnivore's Dilemma" takes a journalistic approach as Pollan traces three modern sources of food 鈥 industrialized, alternative or "organic," and hunter/gatherer 鈥 from the plate back to the source. Pollan's book casts a new light on the question, "What's for dinner?"