Up To 90 Percent of US Money Has Traces of Cocaine

mmmscience writes "Scientists have found that up to 90% of US paper money has some cocaine contamination, up from the 67% mark measured two years ago. Looking at bills from 17 cities, it's no surprise that the city with the highest level was Washington DC, where up to 95% of bills gathered there tested positive. From a global standpoint, both Canada and Brazil tested rather high (85% and 80%, respectively), but China and Japan were well behind the curve at 20% and 12%. The researchers hope that studies such as these will be of help to law enforcement agencies that are attempting to understand the growth and flow of drug use in communities."