Once again the vulnerability of air travel to terrorism has been exposed. The existing measures deployed for passenger security at airport security points didn’t stop the Christmas Day airline bomb plot suspect who had explosives sewn into his underwear. The archway metal detector can, after all, only detect metal.
Unsurprisingly, the knee-jerk reaction of many governments is to order more full-body scanners. They can, in the hands of expert operators, identify a host of substances and items concealed beneath clothing.
But it would be a grave error to use this technology to screen all passengers. Not only are these scanners much more expensive than their metal-detection predecessors, they are also slower.… Seguir leyendo »