This document discusses the application of face and image recognition systems. It begins by defining a facial recognition system as a computer application that can automatically identify or verify a person from a digital image or video frame. It notes that machine performance does not degrade with increasing data like human performance, and machines do not experience fatigue. It then lists nine common applications of these systems, including law enforcement to identify suspects, security/counterterrorism to detect known terrorists, corrections to track inmates, and banking/airports for identity verification to reduce fraud.