Any potential threat items that are detected are indicated on a generic outline of a person.
If no potential threat items are detected, an "OK" appears on the monitor with no outline.
Strict privacy safeguards are built into the foundation of TSA's use of advanced imaging technology to protect passenger privacy and ensure anonymity, and TSA always looks for new technology that meets our security standards while enhancing existing privacy protections.
All millimeter wave imaging technology machines use Automated Target Recognition (ATR) software. ATR is designed to enhance privacy by eliminating passenger-specific images and instead auto-detecting potential threats and indicating their location on a generic outline of a person. Areas identified as containing potential threats will require additional screening. The generic is identical for all passengers. If no potential threat items are detected, an "OK" appears on the monitor and the passenger is cleared.
By eliminating the image of an actual passenger and replacing it with a generic outline of a person, passengers are able to view the same outline that the TSA officer sees.
Click here to read the Privacy Impact Assessment (PIA) for Imaging Technology (pdf, 260Kb)
Advanced imaging technology screening is optional for all passengers. Passengers who opt out of AIT screening will receive alternative screening, including a physical pat-down.