Serious weapons can be easily smuggled onto an airplane. I own a 100% ceramic pocket knife and I don't even bother to take it out of my pocket when going though security because it doesn't set off the metal detector. There are off-the-shelf, non-metallic guns who do not set off the alarms either. All it takes is money. While we need the metal detectors to catch the unsophisticated hijacker, in this day we need much, much more. The airport is one place where I'd be willing to acceptuniversal face scanning and recognition.
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Serious weapons can be easily smuggled onto an airplane. I own a 100% ceramic pocket knife and I don't even bother to take it out of my pocket when going though security because it doesn't set off the metal detector. There are off-the-shelf, non-metallic guns who do not set off the alarms either. All it takes is money. While we need the metal detectors to catch the unsophisticated hijacker, in this day we need much, much more. The airport is one place where I'd be willing to acceptuniversal face scanning and recognition.
I got news for you...ICBM's can cover the world in 30 minutes or less now. The Scramjet would only make them cheaper.