Cocaine traces found on 95% of banknotes from Washington

Scientists have found traces of cocaine in 95% of banknotes collected in Washington, the American Chemical Society reports, and 90% from large cities such as Baltimore, Boston and Detroit. The lowest average was found on bills collected from Salt Lake City. The findings were presented at the 238th National Meeting of the ACS, which says the study suggests "cocaine abuse is still widespread and may be on the rise in some areas." The scientists, led...

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