Quincy, Washington, had been a sleepy northwestern farming town until its rest is disturbed by a shocking secret beneath its once-fertile fields: chemical manufacturers are disposing of leftover toxic waste by selling it to unsuspecting farmers as fertilizer. The tainted fertilizer -- containing arsenic and cadmium, lead and dioxins-is believed to be destroying crops, sickening animals, and endangering the nation's food supply. And owing to a gaping...