Stephen Elliott, Director Of International Biometric Research at Purdue University, uses a palm scanner to gain entrance to one of his biometric labs Tuesday, Oct. 15, 2013 in West Lafayette, Ind. Iris scans, fingerprint scans, facial and voice recognition are tools that improve security while making our lives easier, says Elliott. Stephen Elliott, Director Of International Biometric Research at Purdue University demonstrates a fingerprint recognition system one of his biometric labs Tuesday, Oct. 15, 2013 in West Lafayette, Ind. Automated recognition of individuals based on their unique behavioral and biological characteristics is going mainstream and being studied by Elliott. Stephen Elliott, Director Of International Biometric Research at Purdue University, poses in one of his biometric research labs Tuesday, Oct. 15, 2013 in West Lafayette, Ind. Elliott says that you may never need to memorize another password with the increasing use of biometrics to verify identity. (AP) - You may never need to memorize another password. That's the goal of researchers at Purdue University's International Center for Biometrics Research. Stephen Elliott is the director of international biometric research at Purdue University in Indiana. He says iris and fingerprint scans as well as facial and voice recognition are just a few of the tools that improve security while making lives easier. His basement lab is a place where emerging biometric technologies are tested for weaknesses before they can go mainstream. Biometrics is already in use at one local restaurant. Chris Smith, assistant manager of KFC in West Lafayette, Ind., says workers punch in by putting their finger on a fingerprint scanner attached to their cash register.