"Denver Post - Aug 25, 2017: The number of drivers involved in fatal crashes in Colorado testing positive for marijuana use has risen sharply every year since 2013, more than doubling in that time, The Denver Post has found."
I can see my car insurance rates going up from my living room.
I kept myself clean of pot because I did driving a van for one of my jobs. I can only imagine a pilot flying a plane would need to be even more alert and clean of drugs than I was.