Actually, we need to start using LESS corn in raising beef cattle. Feeding cattle exclusively corn(as is the case most of the time) has a significant drawback. It changes the pH ballance of the cows digestive fluids from acidic to alkaline. E. Coli cannot survive in acidic environments, but thrives in alkaline environments. If we actually switch the cattle to hay feeding and grazing for just two weeks before slaughter, it would prevent nearly all cases of E. Coli contamination. It will almost never be done, because most large scale beef operations don't have any actual pasture land any more.

Basically what I'm saying is, if we start using more corn for fuel, not only will we become less energy dependent, but if we stop or limit feeding the leftovers to cattle, we'll have fewer health problems.