Originally Posted by
corporate-wage-slave
"Knowingly" is clearly correct but actually Heathrow, AMS, some USA locations have had these scanners for some time in evaluation mode before they could get sign off from the authorities that they work OK.
Is the radiation exposure to staff greater with these machines? CT scans in healthcare are considered to represent a modest and 'safe' radiation exposure to patients, but staff generally wear a small device to monitor cumulative exposure to radiation picked up 'outside' scanners and X-ray equipment. Perhaps airport staff do likewise?