Cocaine Contaminates Majority of U.S. Currency

I remember there wsa survey back in the last 70's . I forget what the percentage was then, but that was the days when it first hit BIG. I'm amazed that it's still so popular as it seems to be.

For cocaine users, a rolled up $20 bill may be the most convenient tool for snorting the powder form of the drug. Or so it would seem from a new analysis of 234 banknotes from 18 U.S. cities that found cocaine on 90 percent of the bills tested.



Cocaine Contaminates Majority of U.S. Currency: Scientific American