In my state traffic engineers control speed through the judicious and stratigic use of potholes.

The clean up from Nuclear Reactors is actually the easy part. Typical amount of radioactive waste per year would fit in the back of a pickup truck. Almost all of it is being stored on site of the various power plants. Where to put that waste where it will be safe for 10,000 years of so is the difficult problem. In the end a coal plant puts out as much radioactive waste as a nuclear plant. It just dilutes it and spews it into the air. Nuclear is by far the least of all evils.