Most U.S. Money Laced With Cocaine

From Live Science:

Traces of cocaine taint up to 90 percent of paper money in the United States, a new study finds.

A group of scientists tested banknotes from more than 30 cities in five countries, including the United States, Canada, Brazil, China, and Japan, and found "alarming" evidence of cocaine use in many areas.

U.S. and Canadian currency had the highest levels, with an average contamination rate of between 85 and 90 percent, while Chinese and Japanese currency had the lowest, between 12 and 20 percent contamination.

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