federal bureau of narcotics, harry enslinger, have a vendetta against african-americans, hounding louis armstrongom its inception, marijuana prohibition was rooted in racism, steeped in xenophobia, and served no real public health or safety benefit. >> reporter: the passing of the controlled substance act in 1970 classified cannabis as a schedule 1 drug, on the same schedule as heroin. >> this n finasis in terms of the increasing use of drugs. >> that created an incentive for law enforcement to really target communities of color. we've had millions of people arrested for cannabis possession or sale. >> ten years of your life in the middle of your 20s. you miss a lot, man. you miss christmases, birthdays, people die. >> what did you miss? >> everything. everything, just the whole -- man. that's tough. hold up. >> reporter: the pain of lost time never truly goes away. >> man. >> what kept you going? >> oh, my mom. my mom came and saw me at least once a month the whole time. >> going to see him was -- i had to prepare myself. you got 45 minutes. to see him. and they come around, and they tell you "y