More states are permitting the use of marijuana for medicinal purposes and the Obama administration has signaled relaxed enforcement of the industry in those states. Now, a new generation of marijuana entrepreneurs has emerged across America. They come from the unlikely fields of finance, politics, medicine and law, and they want to claim a stake in this modern day gold rush.

CNBC's "Marijuana USA" goes inside a flourishing medical pot industry. In Colorado, the demon weed is rebranded as a natural herbal remedy with healing powers that even respectable citizens can enjoy. We meet two restaurant owners who are about to launch a new line of cannabis-infused edibles. And, we’ll go inside a clinic where marijuana is almost always the doctor's order.

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