...The full-body scanners at Canadian airports—introduced at YVR earlier this year following the same move in the United States to heighten security—use “millimetre-wave technology”.
When a passenger steps into a millimetre-wave scanner, radio-frequency energy is projected over the body. The radio waves are reflected back to create a three-dimensional silhouette-type image that security staff see on a screen in another room.
Now that the machines are a routine part of international travel, Crofton would like to know who, if anyone, is monitoring the devices—and what health problems might be associated with the machines.
“How are the scanners calibrated?” Crofton asks. “Who’s calibrating them? How consistent are the levels? Who’s monitoring the levels? What long-term data do we have on their use?...
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