Middle Eastern and European countries use iris scans to recognize travelers at airports and border crossings.
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Iris scans and fingerprint readers, however, are not the only authentication options in evidence at Comdex.
Is it possible that iris scans could actually provide us with more privacy in our day-to-day lives?
To approve applicants, the TSA requires fingerprints and iris scans along with multiple forms of identification like driver's licenses and passports.
More ambitious still are plans to link the register to other government databases, and to incorporate biometrics such as fingerprints and iris scans.
Not just your name and address and place of birth but your image, signature, fingerprints - maybe even iris scans and a facial measurement template.
The technology includes finger print and iris scans to help ensure the person zipping through is in fact the customer who applied and was approved for safe travel.
Some lawmakers foresee significant data being linked with iris scans.
"We need to be careful about the power of this technology, especially the power of DNA. It's iris scans or fingerprints today, but it'll be DNA tomorrow, " he said.
Dubbed the Next Generation Identification (NGI) program, the high-tech endeavor uses biometric data such as DNA analysis, iris scans and voice identification to track down folks with a criminal history.
The banks have also been experimenting with more sophisticated forms of user authentication, including fingerprinting, iris-scans and biometrics.
Ministers are planning to use face, iris and fingerprint scans to identify people.
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