After the security theater was in full swing, I got stopped at a security checkpoint and was told that I could not take my spare set of strings onto the plane, because they might be used as a garrote.
Knowing that I hadn’t changed them for a while, I asked whether it would be okay for me to sit there and change them. They agreed. So I took 15 minutes and put the new strings on my mandolin. That appeased them, and I continued on my long journey home.
So, the strings were still allowed through… on my instrument. Where I could have removed them and fashioned a garrote just as easily as when they were new in the bag.
The terrorists won. I never flew again.