This week, members of Congress looked at some so-called "smart guns" that are being manufactured by different companies. Linda speaks with Doug Weiss, author of the "Smart Gun Technology Project Final Report" about the various new technologies available which could prevent anyone except the owner of a gun from using it. Weiss discusses fingerprint identification, voice recognition, and touch memory. He says the most promising technology is radio frequency tags. But he warns that even that technological solutions have many problems.
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