In nearly 50 years of researching the legendary powers of cannabis, Raphael Mechoulam, an 80-year-old chemistry professor at Jerusalem’s Hebrew University, says he’s only sampled the stuff. . .

After taking a serious look at legalizing marijuana, Californians voted Tuesday to reject Proposition 19, which would have made the state the first to allow the drug to be sold for recreational use.. . .

Marijuana is everywhere. Smokers come from every walk of life — from the college student to the cancer patient, from the wealthy older couple to the heroin addict who started out just smoking weed.. . .

In a way, medical marijuana dispensary owner Matthew Cohen is just another small businessman.. . .