re: So Tony Stewart ran over and killed another driver at a race last night

Marijuana should be a non-issue. Cannabis and race car drivers have always worked well together. Consider the racing success of John Paul, Jr. and John Paul, Sr. They were dominant before the law got them. Consider Bill and Don Whittington.

Around 1974 Car & Driver magazine decided to quantify the effect of the two most popular recreational drugs on driver performance. The magazine staff assembled a group of pro race drivers with identical Porsche race cars at a California track. On the first day of the test each driver went out on the track and established base lap times while not under the influence. Then the drivers toked up and got stoned before going out again and recording lap times. Some drivers got a little slower and some got a little faster but there was no statistical difference in lap times. The following day the same procedure was followed but instead of pot each driver had two alcoholic drinks. Every driver was slower after imbibing and many were either running off the track or spinning out.

I'm 65 and I've smoked and driven for over forty years and never had an accident or a DUI.