Is marijuana the holy grail of good health?

"Researchers nationwide are eager to unleash the

potential of marijuana. But the government doesn't make it easy. It's still classified as a highly addictive drug with no medical benefit, despite growing evidence to the contrary"

"Yet research is moving forward despite the barriers. Concerns that demand is outpacing the scientific research needed to determine long-term safety and efficacy inspires doctors to move forward. This hour, we talk to four researchers  on the cutting edge of new research."