Then again, it also depends on where you are.
I've flown out of one airport, arrive at another. Go outside for some fresh air because of long layover. Get back into airport, go thru security check, only to have the things in my backpack taken from me. Don't understand it. If it's allowed in one airport, then why not ALL of them?
I've also had little sewing kits taken from me. You know the kind...has a couple needle, needle threader and some thread wrapped around a small piece of cardboard. The entire kit is no bigger than a business card.

Talk about silly rules; I had a pair of eyebrow tweezers taken away. What was I going to do, pluck the pilot to death?

Last month when I flew to FL, I decided at the last minute to take my suitcase on the plane w/ me rather than checking it (which would have cost $20). In the outside pocket was a rotary cutter. It went through screening no problem!

The afgan thing was sooooo funny. Thank you for the morning laugh.......I used the tooth floss cutter on a 5 hour flight from CA to NYC (includes stopover in Dallas)

Well guess I'll head over to KLM site & see if they'll let my folding scissors through. I also have the clover round cutter with me and will be flying next week. If they take either, it won't be a big deal as I've had the clover one for years & never remember to use it!

I am still laughing!!!

Interesting that they say knitting needles are OK for carryon.
They confiscated my husbands Cross pen stating that it could be used for a stabbing weapon. Knitting needles are thinner and longer. Go figure.

I just flew to Calif for Thanksgiving and took along the round nosed fiskar school scissors. I showed them to the TSA agent before going through security and he said they could go through because they were rounded with a blade less than 4" long.

i don't know. seems to me you could whack someone pretty good with a cane.

It's good, that I don't fly. I wonder, if you could find a piece of obsidian. It's stone and can be flaked off sharper than any razor blade. They sometimes make scalpel blades from it. I'll bet you could make a real sharp knife out of ceramic, which would get by the metal detectors, too.