“On a recent Friday, mechanical engineering major Bernard Keeler handed a Red Bull to a cashier in the Miner’s Shack campus shop, typed his birthdate into a pay pad and swiped his finger. Within seconds, the machine had identified his print and checked that blood was pulsing beneath it, allowing him to make the buy. Afterward, Keeler proudly showed off the receipt he was sent via email on his smartphone.  It’s the extra layer of protection — that deeper check to ensure the finger has a pulse — that researchers say sets this technology apart from already-existing digital fingerprint scans.”

http://bigstory.ap.org/article/sd-college-tests-fingerprint-purchasing-technology

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