By Ellen McCarthy, The Washington Post
Three or four days a week, Darren Hiers gets lunch at a Sterling convenience store near the car dealership where he works. He grabs a chicken sandwich and a soda and heads to the checkout counter, where a little gadget scans his index finger and instantly deducts the money from his checking account.
Hiers doesn’t have to pull out his wallet to buy lunch — and if it were up to him, he’d never have to write a check or swipe a credit card again.
The finger scan used at the shop in Sterling, known as a biometric payment system and made by a Herndon firm, is just starting to be installed at convenience stores and supermarket chains around the country, another step in a revolution that is turning the human body into the ultimate identification card.
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