"Facial recognition technology is increasingly used in a variety of ways – from security and authentication to photo tagging on social networks and targeted advertising on digital signs in stores. Facial recognition software packages are freely available online, and the technology is fast making its way into mobile phones. Facial recognition poses complex privacy issues that do not fit squarely with present laws."
Read the rest of this article in "Facial Recognition and Privacy", Center for Democracy & Technology, December 6, 2011. Learn more about biometric security.