I just learned that FAA regulations do not prohibit packing florescent and neon lights (contain mercury) in your checked and carry-on luggage when flying on an airplane (made of aluminum).
Forgive me if I misunderstand, but this is a huge gap in security, right? Broken lights would release mercury, any even a little bit of mercury could pose a structural threat to the aircraft?
Maybe the amount of mercury isn't enough to be a problem, or aircraft are hardened against this kind of thing?
This is the Vranas instance.