[Peach]

Anyone with good ideas, such as the one espoused earlier about an early warning system, should contact LEO and suggest said idea. They (LE) are a little overwhelmed, sleep deprived, and just plain afraid of thinking outside the box and need all the help they can get.

[Miss Marple]

I think that is an excellent idea as well. Since the Amber alert system is going to be in effect in all states soon, I would suggest a combination of the two...horns blaring and all radios required to notify immediately that everyone stop in place. Everywhere, not just on major highways.