A US salvage company is suing Colombia for half the ship's estimated $20 billion in treasure, saying it discovered the wreck first near Cartagena.
  • A US salvage company is suing Colombia for half of a shipwreck’s estimated $20 billion treasure.
  • The company says it was the first to find debris from the San José, which sank in 1708.
  • The Colombian government disputes the company’s claims and says the treasure is a national heritage.