Is Corn Compostable?

We talked about corn and quite a bit in the bottled water up because they can make it into a plastic. They also have corn based packing peanuts, which really they should figure out how to make them from peanuts. And I think we said this in the water, bottled water one too. It's not compostable. You can't do that in your backyard. We should be using food cropland for growing food, not for growing plastic.