[CORed]

Before the federal .08 (it's one of those deals where states lose highway funding if they don't enact it), Colorado had a law very similar to what you advocate. 0.10 for "Driving under the Influence" with automatic license suspension, big fine, alcohol classes, etc. and 0.05 for "Driving While Ability impaired", which was usually just a fine and 8 points on the drivers license (12 in a year will get you suspended, speeding 1-10 is 3 points, speeding 10-20 is 4, as is running a red light or stop sign). I think the 0.05 is still DWAI, but now 0.08 is DUI. i think this is a reasonable approach. Unfortunately, MADD, and all the people who have bought into their propaganda, what to lock up anybody who has even one beer before driving, and throw away the key.