They were retired before May 2013. Officially retired due to the "FAA Modernization and Reform Act of 2012" which banned scanners that produced nude images, bu

They were retired before May 2013. Officially retired due to the "FAA Modernization and Reform Act of 2012" which banned scanners that produced nude images, but the scanners came under continuous criticism for safety and were banned in the EU and elsewhere. I'd be surprised to see them try and re-introduce backscatter x-ray scanners when the less divisive Millimeter Wave scanners work "well enough" for their security function. Backscatter was just a political lightning rod. The Wikipedia article goes back and forth on the safety aspect: https://en.wikipedia.org/wiki/Full_body_scanner#Backscatter_X-ray_scanners https://en.wikipedia.org/wiki/Full_body_scanner#Backscatter_...