Deception Detection through Automatic, Unobtrusive Analysis of Nonverbal Behavior (original) (raw)

E very day, hundreds of thousands of people pass through airport security checkpoints, border crossing stations, or other security screening measures. Security professionals must sift through countless interactions and ferret out high-risk individuals who represent a danger to other citizens. During each interaction, the security professional must decide whether the individual is being forthright or deceptive. This task is difficult because of the limits of human vigilance and perception and the small percentage of individuals who actually harbor hostile intent (see the sidebar for more about these challenges). Security personnel can't halt the flow of people and material to extensively gauge the truthfulness of every interaction, so we must do more to help them identify deception and ill intent.