With the Future Attribute Screening Technology (FAST) system, the Department of Homeland Security (DHS) Science and Technology Directorate (S&T) seeks to improve DHS’s ability to quickly and objectively screen individuals for malintent. FAST combines cutting-edge behavioral and physiological science with deception detection theory and state-of-the-art sensor technologies. It is designed to be used at checkpoints to help security officers identify individuals for secondary screening.