Egregious violation of safety and privacy at American borders

Around the time I was warning that unseemly practices of other countries could come to the US if we weren't, Obama's DHS was purchasing the very technology that I was worried about: scanners that were capable of seeing through the metal bodies of cars and trucks. I knew that DHS has been using these for VIPR inspections of trucks, but I did not know that any had been installed at the border. They have and CNET has the story.