Won't make myself popular here, but I think they should just be forbidden and be done with it. How can they, for instance, allow a 'butter wouldn't melt' GNeter, but not someone younger, or a man, or someone wearing a burka? Rules have to be applied to everybody the same in an airport. And of course knitting needles could be taken from a bwmGneter and used for the wrong purpose. You can't have nail scissors taken from people but knitting needles allowed. Sometimes things annoy us, but if we look at the bigger picture, we can put up with the inconvenience for a few hours and read instead.