Biometric technology and fingerprint recognition locks have grown in popularity in recent years due to September 11th. Because of the increased security concerns, the United States government has become a strong advocate of this technology for the future. Biometrics is the study of methods for uniquely recognizing humans based upon physical or behavioral traits. There are many ways it is used for including face, fingerprint, hand and iris recognition. Since this technology is still relativity new, it has problems that all new technologies share.