I am neither a tree hugger nor a corn farmer and I do dislike the special interest politics referenced above. But (there is always a but) the USA is currently using 3.7 million gallons of gasoline PER DAY. This has resulted in a huge transfer of wealth to some places that don't like us too much (middle east, Venezuela, etc.). Given current day politics (pipeline construction, EPA, middle east political instability, etc) some alternative is going to have to be found. Why not "blender" pumps where a consumer could purchase E-0, E-10, E-30, E-85. Brazil did this years back and now imports little or no oil. Ethanol may not be the end all, be all solution, but it works for me. Hydrogen could be OK, but requires Kevlar/fiberglass weave tanks that are DOT approved. Very expensive and you need 4 for an 8 hour run time. I know this because my company investigated retrofitting a small fleet of 40,000 lb. medium duty trucks. Turned out the conversion was not cost effective. Why couldn't we take a hard look at something (ethanol) that is already sold at some stations and can be tranported by conventional means (which hydrogen cannot).