Why? So the TSA can just destroy those, too?

(Or try to, anyway?)

I like the "firearm" method, but it still calls for hardsided luggage. But without the "firearm" paperwork, I have a sinking feeling that the TSA would simply destroy the Pelican case trying to get the lock off of it.

Heck, they might destroy it anyway, even with the "firearm" paperwork, just because they can.