Re "How high is too high to drive? States find no easy answers": I know a lot of teenagers and young adults, ages 15-22, who drive while stoned all the time. Many of them have gotten in accidents while driving under the influence of marijuana.
It's absurd that for most kids, that's not a deterrent. In youth culture, it's OK to drive while high as opposed to driving drunk, because it seems near impossible for the police to test them for being high. They think they're safe from being caught and still somehow believe it's physically safe.
To me it's obvious that driving high just isn't safe. It's also obvious to me that most teenagers would only be deterred if they thought they might be caught. Police are able to administer sobriety tests for drunken driving. Maybe if law enforcement could develop something similar for high drivers that wouldn't require blood tests.
-- Timothy Hall, Sacramento