Well, I can remember when my father-in-law in Iowa was paid handsomely NOT to plant any corn at all (the "diverted acres" program). He was encouraged to plant something else instead. Millet or other similar stuff maybe. All I know is it resulted in the best food and cover for pheasants, and the best pheasant hunting ever.

Just to bring this back on topic, I don't know why necessarily, but I was surprised (and dismayed) to see that corn sweeteners had made their way into survival ration bar products, with the notable exception of the Datrex bars. It's comforting to know that I will at least be surviving without a lot of sinus drainage, malaise, and coughing, at least from what I'm eating.