Related by context. Frequent words. (Click for all words.) 68 X ray machines 66 scanners 59 X ray machine 59 body scanners 55 metal detectors 53 scanner 53 Scanners 52 baggage screening 50 detectors 50 radiation detectors 49 Rapiscan 49 imagers 49 metal detector 47 x ray 47 airports 46 Smiths Detection 46 CT scanners 46 X ray 46 pat downs 46 backscatter 45 computed tomography CT 45 X ray imaging 44 thermal imaging 44 scanning 44 scans 44 millimeter wave 44 cargo containers 44 infrared cameras 43 sniffer dogs 43 endoscopes 43 Metal detectors 42 sky marshals 42 imaging 42 TSA screeners 42 screeners 41 detector 41 magnetometer 41 infrared imaging 41 terminals 41 ultrasound 41 TSA 40 liquid explosives 40 Ultrasound 40 airside 40 imager 40 infra red 40 endoscope 40 computed tomography 40 positron emission tomography PET 40 CT scanner 40 Airports 39 scan 39 ultrasound imaging 39 surveillance cameras 39 CT scans 39 cameras 39 biometrics 39 Biometric 39 InVision 39 tomography 38 thermal imaging cameras 38 holograms 38 Sniffer dogs 38 conveyor belts 38 digital mammography 38 biometric 38 sensors 38 CT scanning 38 microscopes 38 CCTVs 38 screening 38 bomb sniffing dogs 38 magnetometers 38 microchips 37 iris recognition 37 checked baggage 37 detection 37 Biometrics 37 barcode scanners 37 scanned 37 CCTV cameras 37 microwaves 37 seaports 37 Schiphol 37 Cameras 37 surveillance 37 thermal imaging camera 36 box cutters 36 radiography 36 facial recognition 36 wands 36 motion detectors 36 infrared camera 36 shipping containers 36 Screeners 36 spectrometers 36 airports seaports 36 baggage handling 36 devices 36 baggage handlers 36 projectors