About airport passenger screening systems Air passengers have to undergo strict security screening procedures before embarking an aircraft. In airports, passenger screening involves pat-down search and the use of passenger screening systems (such as metal detectors or full body scanners) to ensure the security and safety. Initially, hand-held and walk-through metal detectors were used to screen passengers at airports. But, as a result of the growing air traffic, advanced passenger screening systems (based on backscatter X-ray and millimeter wave technology) are largely being used at air...more >>
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