Detailed text transcripts for TV channel - MSNBC - 20120519:20:32:00
Virginia, heroin and other drugs from around the world are tested to determine their unique signature, what they're made of, and where they came from. >> these are drug samples that have come to the laboratory for analysis. this is a large amount of south american heroin present in this bag actually from colombia. its purity is about 90%. >> 90% pure. >> 90%. >> is that where the danger of overdose comes from when you've got something that pure? >> yeah. if this product were to hit the streets and a heroin user accustomed to using a less pure product took a large amount of this they could in f...
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