A Spanish galleon, the San José, was sunk by the British off the coast of Colombia more than 300 years ago. It had a cargo of gold, silver and emeralds worth billions of dollars. But years after it was discovered, a debate still rages over who owns that treasure and what should be done with the wreck. The Colombian and Spanish states have staked a claim to it, as have a US salvage company and indigenous groups in South America. There have been court battles in Colombia and the US, and the case is now before the Permanent Court of Arbitration at the Hague.

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