A deep-sea treasure-hunting company in Florida says that diplomatic cables recently released by WikiLeaks have exposed the U.S. government’s backdoor interference in a lawsuit over $500 million in silver and gold coins recovered from a Spanish galleon.

According to Odyssey Marine Exploration, based in Florida, the U.S. State Department cables show that the U.S. ambassador to Spain made a quid pro quo deal to assist that country in its battle with Odyssey for the treasure.

In exchange for the U.S. siding with