“Half of all drunk drivers who are involved in fatal car wrecks are extremely intoxicated—sitting at BAC levels of 0.15 or higher. In contrast, only 16 percent of those involved in fatal wrecks have BAC levels under 0.08 (and the number is even lower for those specifically in the .05 to .07 range who would presumably be impacted by a switch to a .05 legal limit).
The worst drunk driving perpetrators are also often repeat offenders who appear to be impervious to any legal limit. About 30 percent of DUI arrestees in Utah had a prior arrest for drunk driving and 10 percent had two or more arrests. This is the political reality that few want to address. The couple who has a couple of glasses of wine with dinner is not the problem—it’s the person who is well over the legal limit and often a repeat offender who is causing the majority of carnage on American roads. In fact, even Candace Lightner, the founder of MADD is against the proposal, stating that “running around trying to arrest everyone at .05 is impractical.””