Obesity is a major health problem across the United States. But there may be no place that's as profoundly affected as the Tohono O'odham Nation, south of Tucson, Ariz. Native Americans there have one of the highest rates of diabetes ever recorded.
Terrol Johnson grew up on the reservation eating fry bread, government-supplied cheese, and drinking liters of soda a day. After Terrol was diagnosed with diabetes as a young man, he set out to change the way his community eats.