I was watching a show on alternative fuels and they said that the US does not have enough farm space to produce food and e85 if we were to fully switch over to E85. This is why I think we need to keep developing our e85 technology as well as our hydrogen technology. To produce hydrogen all you need is water and energy(wind, hydro, solar).

If cars and trucks ran on hydrogen fuel cells and e85 we could become less dependent on oil faster. People could use whatever source of fuel is more plentiful in their area of the country. People on the coasts could use more hydrogen while people in the center of the country could use e85.