Food, Inc by Peter Pringle
"One of the hardest contemporary stories to cover is genetically modified food. It is tangled with pure science, technology, industrialization, profiteering, and world politics. In the past ten years, there have been loud boasts and loud denunciations about GM crops. Those who invent and stand to profit from new herbicide-resistant, insect-resistant, salt-resistant, nutrient-added species have promised that farmers, starving third-world children, and the environment will all be benefited. On the other side are those equally insistent that "Frankenfood" promises nothing but superweeds, distorted genomes for traditional crops, allergies, decimation of fauna, and benefit to no one but giant corporations."