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Sorry Mike, as I said in my earlier post, these measure have little to do with security and everything to do with social control.
Recently, here in Canada, (yes the infection has spread, we even have a no fly list) a Polish man became confused and wound up wandering around the arrival areas for hours. Eventually he went a little crazy and starting throwing things around. 4 RCMP arrived and tased him to death.
Our response? Oh well.
Killing people is actually very useful from the fascist point of view.