Want to hear the doom and gloom version? All it takes is one of these to be found in a terrorist backpack and they will be banned. Consider that 16 years ago on

Want to hear the doom and gloom version? All it takes is one of these to be found in a terrorist backpack and they will be banned. Consider that 16 years ago one guy tried to smuggle a bomb in his shoe and to this day hundreds of millions of passengers take off their shoes in answer.