Passive Millimeter Wave Scanners Deployed

Good. This has less of the problems of Active MMW, where the person appears naked, but blurry on screen. This only superimposes items of interest on video. I don't know if it's live video, but it would have to be to be useful. [Link]

The name “Passive MMW” may imply that this technology operates in the exact same way as the stationary Whole Body MMW machines at the checkpoint. This is definitely not the case. Both technologies are non-invasive and completely safe, but other than that, the only similarity is that both systems make use of millimeter waves in one way or another. To be clear, Whole Body MMW machines bounce harmless millimeter waves off of your body to generate a metallic image. Passive MMW on the other hand receives energy generated by an individual and the objects that they are carrying on their person. This energy can be detected by an appropriate receiver and can be used to detect anomalies.