Iowa produces half the nation's pork. Billions of kilos. And corn is used in endless food products, like it or not.

Right. That corn is feedstock for making food/ethanol. It's not corn as you would eat.

Saying that Iowa covers the food problem is a little like saying that we've got transportation covered because there are railroads that move tons of stuff.

Its all corn you can eat. Just not as Green Giant Niblets in a can. Much is converted to starch, sugar, protein etc. and used in food manufacture.

Sure lots is used for feedstock and ethanol now; because its available and cheap.