173 and 176 people is hardly what I would consider a large enough population to state that pot smokers are statistically more likely to have cancer. Lord knows that if that many people were used in a study and it proved that their was no link between pot and cancer the medical community would not take it seriously. I'd bet my life that bike riding is more dangerous than pot, even with brakes and a helmet.
There, now both sides have weighed in. Now lets just leave it at that before this turns into the next brakes vs. no brakes vs. helmets vs. no helmets bs.