When to Say When?

In reports on the suspension of the drivers' license of beer magnate Peter Coors, who was found by a hearing officer to be guilty of DUI, it is noted that in Colorado a blood alcohol count above .05 is sufficient to determine that a driver was intoxicated.

As a non-drinker who has zero tolerance for drinking and driving, The Oracle nevertheless asks, is .05 too low of a standard? Until a few years ago, most states had a threshold of .10, but in recent years many states, including Tennessee, have lowered the limit to .08.