I know and that sucks. :( A gallon of diesel is taxed significantly more than a gallon of gasoline (essentially an anti-competitive tariff). I think the oil companies back in the day lobbied to raise taxes on diesel fuel significantly so Americans would standardize on petrol engines. That way the American oil companies could make much more money because the whole US is consuming 20-30% more fuel than they would otherwise. Unfortunately, we ended up making all the Terrorists countries rich too and now we are stuck making them richer because we are completely dependent on their oil. Everytime we fill up the tank on that SUV, we sponsor another suicide bomber or help fund a future Al-Queda plot. That's another reason why I think car manufacturers should bring all their diesel cars and trucks to America. To fight the Terrorists.
Actually Diesel engines have significantly less emissions and would qualify as LEV (Low Emission Vehicles, same as Prius) if it wasn't for the poor quality of diesel fuel (high sulfur) produced in the US. Even with the poor grade fuel, Diesel cars pollute less than gasoline cars and they get 45-50MPG to boot. Mercedes' E320 cdi get's like 47mpg!! and you can get it in the US.
Oh, well. Hopefully someday we'll get some more options to get these types of cars.