FROM: U.S. TRANSPORTAION SECURITY ADMINISTRATIONAny potential threat items that are detected are indicated on a generic outline of a person.
TSA began deploying state-of-the-art advanced imaging technology in 2007. This technology can detect a wide range of threats to transportation security in a matter of seconds to protect passengers and crews. Imaging technology is an integral part of TSA's effort to continually look for new technologies that help ensure travel remains safe and secure by staying ahead of evolving threats.
TSA uses two types of imaging technology, millimeter wave and backscatter. Currently, there are approximately 700 imaging technology units at more than 180 airports.
Advanced imaging technology screening is safe for all passengers and the technology meets national health and safety standards. TSA implemented strict measures to protect passenger privacy which is ensured through the anonymity of the image. Additionally, advanced imaging technology screening is optional for all passengers.
