At least the backscatter x-ray machines are gone, now replaced entirely in the US with millimeter-wave scanners.<p>Personally, I don&#x27;t care if somebody&#x27;s looking at my body on a computer monitor. However, I do care if I&#x27;m being exposed to extra ionizing radiation for no good reason. Which is why I always opted out of the x-ray machines, but don&#x27;t really mind going through millimeter-wave ones.<p>(Obviously, other folks will feel very different about this. If your concern is privacy, the millimeter-wave machines aren&#x27;t much of an improvement -- though I do believe most of the human elements of the system have been replaced with image recognition on newer versions.)