We flew through Phoenix in Dec/Jan '08, scanner were in place, but set the side. We weren't offered to be scanned and they just randomly checked people. I did ask the scanned women if they showed her the image and she said no. Would I care if I was scanned. As long as it's erased, no problem.
"Scott Shafer of Phoenix didn't mind a screener looking at him underneath his shorts and polo shirt from a nearby room. The door is kept shut and blocked with floor screens. "I don't know that person back there. I'll never seem them," Shafer said. "Everything personal is taken out of the equation."
Steinhardt of the ACLU said passengers would be alarmed if they saw the image of their body. "It all seems very clinical and non-threatening — you go through this portal and don't have any idea what's at the other end," he said."
USATODAY.com