Volume 85 Issue 24 | pp. 30-34
Issue Date: June 11, 2007

Counterfeiting Countermeasures

Chemistry could play a major role in future deterrents against currency fraud
Department: Science & Technology

SAY YOU'VE BOUGHT a soda with cash, and the store clerk hands you a $5 bill with your change. You probably stick it right in your wallet without a second glance. But what if it's a $100, or even a $20? Do you pay attention to the feel of the paper? Do you hold the banknote up to the light to check for an embedded plastic strip? Do you tilt the bill back and forth, . . .

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