It's just stupid to pretend that getting doped up makes you a better driver. It's just plain idiotic to even try to portray that.
It makes your reaction time much slower.
As I said, pretending it is "good" for people to drive or "better" than alcohol while driving is just silly. It is equally bad to drive under the influence of drugs as it is to drive under the influence of alcohol.
In a recent study of patients of injury accidents drugs were present 51% of the time, only 34% tested positive for alcohol of the sample. (Study by: Michael Walsh, Ron Flegel, Randolph Atkins, Leo A. Cangianelli, Carnell Cooper, Christopher Welsh and Timothy J. Kerns, Drug and Alcohol Use Among Drivers Admitted to a Level-1 Trauma Center).
Anyway.... It is just silly to refuse to admit that there can and will be problems when we finally legalize. Driving under the influence of MJ isn't any safer than driving under the influence of alcohol, it just literally makes you stupid enough to think so while you are still under its influence. (apparently if you are a convert too)