Study: High speed limits deadly

July 28, 2009 In 1987, states were allowed to lift the speed limit on rural interstates to 65 mph.

According to a new study in the American Journal of Public Health, the biggest increase in deaths due to increased speed limits were seen in states that had raised the limit.

Researchers said bringing back a federal speed limit could not only save lives, but help reduce carbon emissions and dependence on foreign oil.

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