Feeding people and livestock. but it's also used in everything else from corn syrup to ethanol to chemicals and more. we should just rename the whole joint the united states of maize. - so you told me that your grandma used to do this. - yeah, my grandmother had one of these suckers-- a grinder. and she would make envueltos and all kinds of corn dishes. yeah, this takes a little muscle. thank god i went to the gym. - yeah. [laughs] - oh, man. it's wild that corn is the most important food in the world now, isn't it? - yeah, it is. - there was knowledge in getting this food to work. and colombi...