What triggers a pat-down?
Pat-downs are used to resolve alarms at the checkpoint, including those triggered by metal detectors and AIT units. Pat-downs are also used when a person opts out of AIT screening in order to detect potentially dangerous and prohibited items. Because pat-downs are specifically used to resolve alarms and prevent dangerous items from going on a plane, the vast majority of passengers will not receive a pat-down at the checkpoint.
Q. What changes can the traveling public expect? What can passengers traveling on flights to the U.S. from international destinations expect?
A. On any given day, passengers traveling on flights to the U.S. from international destinations may notice enhanced, random security measures throughout the passenger check-in and boarding process. Aviation security is a shared responsibility and countries around the world are working together to increase the safety of air travel. Passengers traveling on flights to the U.S. from international last point of departure destinations are likely to notice enhanced measures including the increased use of the technology and processes such as explosives trace detection, canine teams, advanced imaging technology, and behavior detection among other measures.