I am guessing with the above posts that all you guys think there should be no speed limit? The gov'ment is already involved by setting the speed limit at 65, 70, or 125 or whatever. So setting it at 55 or 60 is no additional government intrusion, just the same at a lower number. Its a law. Like the laws that you cant relieve youself on the courthouse steps, or, kidnapping your neighbors wife. Laws are to be obeyed, and at the same time, broken. Its in a persons ethics what he does with the law. Do you cheat Walmart by returning products that you did not buy there, and brag about it? Think you can set your own laws? I do agree that you can burn all the gas you want, although. But I may not be happy about it. That is my right.
Enforcing laws is another matter. But the state of maintenance on alot of the roads in my area may ultimately automatically lower speed limits.
That being said, there is not much chance of a "national speed limit lowering" like the 55 limit in the early seventies. Politicians today do not have much backbone, or ethics.
I do see alot of wasted gas in todays driving. Slowing down would save this country alot of money. I also see alot of vehicles sitting idling when they should be off. But modern conveniences, such as stores with their pay at the pump gas pumps, allow people to pump while leaving their vehicles run. And fast food restaurants, with their drive-thru windows, cater to burning gas. I went to my local McDonalds the other day and saw six cars inline at the drive-thru, and no customers inside! I went in and ordered (yes turning off my car) and was leaving with my food before the third car got to the window. (Yes, another car got in line!)
But its all relative. Freedoms in the US are what made this country great. Unfortunately freedom to waste has become part of our regular conscience in this "live for today, consume, throw away" society. With that, I now step off my soapbox, and try to blend with society..........