Relates the story of when Mexico's Yaqui Indians split into two different agricultural camps in the 1950s, their children became a test group for the effects of pesticide exposure. (Author/DDR)

The use of pesticides in agriculture and the discarding of industrial chemical waste into the air, soil, and water constitute two major pathways of human exposure to toxic substances. It is argued that these practices release hundreds of millions of tons of potentially hazardous substances into the environment each year. Speculation continues into…