The Power of Four Dollars by Charles Krauthammer

http://townhall.com/Columnists/CharlesKrauthammer/2008/06/06/the_power_of_four_dollars?page=1

Want to wean us off oil? Be open and honest. The British are paying $8 a gallon for petrol. Goldman Sachs is predicting we will be paying $6 by next year. Why have the extra $2 (above the current $4) go abroad? Have it go to the U.S. Treasury as a gasoline tax and be recycled back into lower payroll taxes.

Announce a schedule of gas tax hikes of 50 cents every six months for the next two years. And put a tax floor under $4 gasoline, so that as high gas prices transform the U.S. auto fleet, change driving habits, and thus hugely reduce U.S. demand -- and bring down world crude oil prices -- the American consumer and the American economy reap all of the benefit.