- Kidnapping - It's the only action.
- Explosives - It's the only thing that is illegal to make.
- African Militias - It's the only one about using people.
- Unbreakable Encryption - It's the only thing that is used by regular people on a regular basis.
- Missile Guidance Systems - It's the only thing that's not unique.
- Private jets full of gold - It's the only thing most people would trade an arm and a leg for.
I see you get one joker in your game.
doesnt the US restrict import/export of encryption over a certain keylength as well?
Either way, "make", not "export". I'm almost certain it's illegal to export missile guidance systems under ITAR.
I think it's technically still a law that's on the books and the American federal government did try to claim PGP was "munitions" at one point in the 90's, but the feds were skirted by PGP being printed in a book which is protected by the 1st amendment.[0]
[0] https://en.wikipedia.org/wiki/Pretty_Good_Privacy#Criminal_i...
Missile guidance systems would probably be illegal to export, though. (You'd have to declare the gold.)