Should bioethanol production from corn be encouraged, given that corn is used as a basic cereal in many societies? Should bioethanol production be subsidized in the United States, and also be protected against competition from Brazil sugarcane-based bioethanol?

1. Should bioethanol production from corn be encouraged, given that corn is used as a basic cereal in many societies? Should bioethanol production be subsidized in the United States, and also be protected against competition from Brazil sugarcane-based bioethanol?