Besides fact-checking the figures they use for food, one should also use the REAL cost of gasoline, not what we pay at the pump. There are numerous subsidies to the oil companies, plus other hidden costs that make the real cost much higher. The best study I know of is over ten years old and had the minimum cost at $5.60 then, so add some to that to get the minimum now. The estimate varies widely depending on, for example, what percentage of our defense budget is protection of oil interests and how much is all the rest. We are fighting two wars in (coincidentally?) the oil-rich middle east, no one with a brain concludes that protection of oil interests is not included in those actions. Link to the study and another article:
http://www.icta.org/doc/Real%20Price...20Gasoline.pdf
Sustainable Living: True cost of pumping gas: $10 a gallon | recordonline.com