WAIT!
What if the government built a nuclear reactor to convert water into hydrogen for my new car? Oxygen would be let into the atmosphere, hydrogen would be stored in the "G"as stations for my new cars. What would a gallon of Hydrogen cost? Since we're on the topic of subsidies, how about it? How much would be a tax portion, how much would be for the actual cost of production, what is the market value component, etc, etc... Could we do it for $3 a gallon?