Forget cash, system would let you buy with a fingerprint

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Living Fingerprint Experiment
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Living Fingerprint Experiment
Joseph Wright, associate vice president for research-economic development at South Dakota School of Mines and Technology, poses Feb. 15, 2013, alongside a Nexus pay pad, which scans fingerprints and detects hemoglobin to allow people to buy from select shops on campus. About 50 students and four faculty members at the school are enrolled in the pilot program that uses Biocryptology -- or one's fingerprint and hemoglobin -- in place of cash or credit cards. Wright says the program has so far been successful and he hopes to spread it campus-wide soon. (AP Photo, Amber Hunt)