one of the most successful documentaries in the history of film is "cocaine cowboys" that tells that story. the film made by these guys, alfred spellman and billy corbin. >>anthony: so things were in decline. cocaine sort of saved the city? >>alfred: we'd say so. am i going to get in trouble for it? yes. >> billy: by 1981, you had a murder rate. you had 635 homicides here. 25% of those bodies had automatic weapons bullets. >> anthony: right. >> anthony: we talk about the uncomfortable reality of where a lot of modern miami came from over something you just have to hit hard when in miami in season. stone crabs. ♪ >> alfred: federal reserve branch in miami had a $5 billion cash surplus. mostly 50s and 100 dollar bills all of which had trace elements