Do Away With Speed Limits?

Seven states — Idaho, Montana, Nevada, South Dakota, Texas, Utah and Wyoming — have allowed 80 mph speed limits on select highways. One, Texas, has 85 mph on a section of State Highway 130. Legislatures have upped limits as cars have become safer and more powerful and the price of gas has tumbled, lowering concerns about the poor fuel mileage that high-speed driving can bring.

Yet, the resulting higher speeds haven't made much of a statistical dent in highway deaths, the Governors Highway Safety Association reports.

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