Furthermore, this statistic in no way indicates that these screenings reduce the risk of dying in a terrorist attack. 1 plus 1 does not equal 0. You've allegedly doubled your risk of dying, not reduced it.
Blacklists do not work. Antivirus software checks for a hundred thousand individual known problems, yet viruses and malware continue to evolve and bypass the blacklist. So do explosives hiding in containers that the TSA doesn't expect to find explosives in.
Planes and buildings are cheap as shit in comparison.
There's your cost of terrorism right there.
(Yes I know parent is sarcastic.)
• the scan completely offsets the risk of terror death. I suspect not; someday someone will tell the TSA and/or terrorists about drug mules.
• the economic cost of the scanning infrastructure/training/delays etc. is equal or less than the economic cost of the terror deaths offset.