The Wall Street Journal published an opinion piece last Friday that, according to the headline, offered “A Simple Fix For Drunken Driving.” I was intrigued because, frankly, I didn’t think there was one. As it turns out, the headline over-promises. The author, Stanford University psychiatry professor Keith Humphreys, does not purport to have a solution that ends impaired driving once and for all. Instead, Dr. Humphreys reports on the “stunning” results of South Dakota’s “absurdly simple” 24/7 sobriety program for repeat DWI offenders.