I am one who thinks it should be left up to the states. Historically it always was. The reason it was moved nation wide was a threat from congress to cut off highway funding to states who didnt change thier laws. From what I understand MADD was the effective lobby group in this.

I think MADD is an honorable organization, but they probably overstepped thier bounds on this one if the anecdotal story I have heard from many different people is true.