Senator John Warner of Virginia has asked the Energy Department to look into setting a national speed limit that would best optimize the nationâ€™s gasoline use. A 55 mph limit could save 167,000 barrels of oil each day.
In 1974, Congress mandated a 55 mph speed limit in part to combat the Arab oil embargo, so there is precedent for this kind of regulation.
But is it a good idea?
Are we at a point where we need to force Americans to conserve gas use?