Cocaine Contaminates Majority of U.S. Currency
Sunday, August 16, 2009 - 18:49
in Mathematics & Economics
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. [More]