Made for TV documentary on the widespread habitual use of marijuana among schoolchildren and teenagers in the 1970s. Part of the NBC Special Treat series. Made for TV documentary on the widespread habitual use of marijuana among schoolchildren and teenagers in the 1970s. Part of the NBC Special Treat series. Made for TV documentary on the widespread habitual use of marijuana among schoolchildren and teenagers in the 1970s. Part of the NBC Special Treat series. Made for TV documentary on the widespread habitual use of marijuana among schoolchildren and teenagers in the 1970s. Part of the NBC Special Treat series.