"Cattle are being poisoned by cyanide-laced weeds in Arkansas. Across the Midwest water-soluble fertilizers are concentrating in soils and plants, making them harmful rather than productive. And in Missouri, samples suggest that more than half the corn crop isn’t fit for human consumption, thanks to unusually high levels of a carcinogenic toxin."

2012 drought: Pick your poison — The Daily Climate

Just when you thought the information about the drought couldn’t get worse….  it certainly gets much worse.