Is marijuana a harmless giggle, as John Lennon once called it, or a dangerous and illicit addiction? The debate rages more than ever. And both sides can make a pretty good case.

Employers who operate in the 14 states where pot is now legal as a prescription painkiller are struggling to reconcile zero-tolerance, drug policies with a patient’s right to get high. Pot-pain break, anyone?

You may associate marijuana culture with snowboarders, surfers, artists, musicians and college students, but it also suits some suits on Wall Street looking for an antidote to the high-octane workplace. Remember the stories about Jimmy Cayne?

The iGrow store in Oakland sells everything one needs to grow pot at home, including soil, lighting, fertilizer, and even a mobile marijuana cultivation station.

In late 2009, the publication “Denver Westword” hired a critic to write a column called “Mile Highs And Lows”, the first medical marijuana critic in the nation, who visits dispensaries and rules on prices and quality. An Q&A with its author, Mike Flowers.

First state to decriminalize? Number of states to legalize medical marijuana? Percentage of Americans who use it? Do you know the answers to these questions and more? Take our quiz and find out.

A newly-identified strain of medical cannibus helps patients relieve pain without the side effects of typical types of marijuana. That's right, you don't get high.