In article , StellaStar
wrote:

Partial quote: "Prohibited items are weapons, explosives, incendiaries, and
include items that are seemingly harmless but may be used as weapons - the
so-called "dual use" items. You may not bring these items to security
checkpoints without authorization....

Interesting...
There was a television spy-type program on two or three years ago.
The one line that I will always remember the main character say is,
"Everything is a weapon, you just have to know how to use it."