There was an excellent James Cameron program showing on the Discovery Channel about the Bismarck this week. A passing mention was that they weren’t allowed to bring back any “artifacts” because of international law.
Why? Does the fact that it’s a warship make a difference? If a car dealer in Virginia can take ownership of the Titanic under international salvage law, what prevents some similarly well-heeled person from commissioning a dive to bring back a rusty bolt and make the same sort of claim (as the Virginia chap apparently did)?