The largest supermarket chain in the US is offering some customers the ability to pay for groceries by "finger imaging," at three of its Texas stores.
A machine scans the index finger, matching the customer's unique fingerprint with the individual's account. The company avoids the term "fingerprinting" because of its law enforcement connotation — the same reason the technology is applied to the index finger, rather than the thumb.
Customers can register for the voluntary program by presenting a drivers license, an index finger and a method of payment — either credit card, debit card or electronic check.
