Here's a quote from the first paragraph:
"Which has received more media coverage: 9/11, Iraq, and Afghanistan combined; or the repeal of the nationwide 55 mph speed limit? You probably guessed the former. But there’s a good case to be made that the answer should be the speed limit. Why?"
How much faster do we really go when the limit is raised? How many more of us are killed in accidents because of higher road speeds? What happens to fuel mileage...?