Until he saw the light, Jon Taggart--6 ft. 5 in., jeans, white cowboy hat, Texas twang--was a rancher like any other in the southern Great Plains. He crowded his cattle onto pasture sprayed with weed killers and fertilizers. When they were half grown, he shipped them in diesel-fueled trucks to huge feedlots. There they were stuffed with corn and soy--pesticide treated, of course--and implanted with synthetic hormones to make them grow faster. To prevent disease, they were given antibiotics. They were trucked again to slaughterhouses, butchered and shrink-wrapped for far-flung supermarkets. "It was the chemical solution to everything," Taggart recalls.
Today...