45 public school districts currently use a biometric system allowing students to pay for their lunches by scanning their fingerprint electronically. this expedites the speed of lunch lines, allows greater anonymity for free or reduced price lunch plans, and allows parents to monitor what their children are really eating.
"after a fingerprint is scanned by a small unit, software creates a template from a grid of 27 intersection points based on the swirls and arcs of a student's fingerprint."
full article here
idea via smart mobs
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