CNBC's Trish Regan goes inside America's controversial marijuana industry. Going from California's marijuana dispensaries to talking to marijuana growers and law enforcement she paints a picture of how large and important marijuana is to this economy.

Le reportage montre l’évolution de la perception de la marijuana dans la société, de l’époque de sa diabolisation aux Etats-Unis à nos jours. Sans prise de parti, le film montre les différents usages du cannabis : industriel, festif, textile, etc.