Just before the recent crackdown debacle in US airport security, I recently traveled through the Vancouver airport on my way to the Canadian Arctic. I had originated in Seattle, where other than the usual lines, the TSA area was business as usual.
But, with only 30 minutes before my flight, my insecurity rose as I watched my laptop bag being run and re-run through the x-ray. While the attendants were scratching their heads over this, I was asked to step into one of the nudeoscans that have received so much outcry in the US. I had determined beforehand that I would refuse one of the backscatter x-ray machines because of the unknown effects of radiation, so I was relieved to be assured that this was a microwave model.