Peter Budnick reviews recent research directed at helping security screeners recognize human verbal and non-verbal behavior that indicates deception. Specifically, the researchers conducted experiments in which participants were grouped into pairs of truth-tellers and liars. The interviewers were blinded from knowing which groups were telling a true story and which were being deceptive. Subsequent video analysis of behavioral metrics suggested behavioral cues that real-world security screeners might be able to recognize when interacting with two or more conspirators, including language/word use characteristics and visual cues like eye gaze patterns. The research demonstrates the breadth of ergonomics/human factors profession, as well as its diverse value to society.