I don’t think needles are on the prohibited list for carry on items. It list knitting needles and crochet needles as ok to carry on but does not mention sewing needles but if they are going to let knitting needles on board I would think they would let a sewing needle on. I would just include it in my FAK or PSK or in my carry on toiletry bag.
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When the wolf attacks he will find that some who run with the flock are not sheep!