WDAY: The News Leader

Published February 22, 2013, 12:00 AM

Living Fingerprint

About 50 students and four faculty members at the South Dakota School of Mines and Technology use pay pads such as this one, shown in a Feb. 15, 2013, photograph, in place of cash or credit cards to pay for items. The pilot program using Biocryptology -- or one's fingerprint and hemoglobin -- to identify buyers. (AP Photo, Amber Hunt)
Read the article: South Dakota college tests fingerprint purchasing technology