ARLINGTON, Virginia -- Iris-scanning and face-matching technologies don't work nearly as well as their manufacturers have claimed, the Department of Defense has discovered.

In a 270-person pilot program at the Army Research Laboratory, thePentagon tested iris recognition technology from Iridian for 26 weeks and the Visionics FaceIt system for 13 weeks. Iridian claims a 99.5 percent success rate, and Visionics predicts solid face-matches 75 to 99.3 percent of the time.

The results: Reality didn't match the hype ..(Pentagon test finds iris, face scan technology not that reliable)