I just flew to Colorado and back on Northwest airlines. In my carry on I had knitting needles, a crochet hook, my stork scissors and a small quilting needle stuck into a spool of thread. I also had a 6 inch metal ruler (the one with the slide in the middle that we all used in Home-Ec class) and they didn't even blink when it went through x-ray. Maybe I got lucky but this is the second time I've flown with this stuff in my carry-on.