Franken plans hearing on facial recognition technology

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"The dimensions of our faces are as unique to us as our fingerprints," Franken said. "And right now technology exists that gives the government and companies the ability to figure out your name and other personal information about you with nothing more than a photograph. I'm holding a hearing in my subcommittee to find out what this new technology means for our privacy and if our current laws are doing enough to protect Americans."

Facebook, for example, uses software to suggest friends to tag in the photos its users upload. The technology can also be used to verify a person's identity or to scan crowds for suspected terrorists or criminals.

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