Searching For Pirate Treasure Using Radioactive Material | Expedition Unknown

Josh is searching for evidence that legendary pirate José Gaspar really existed, and is on the hunt for his buried treasure using some alternative treasure hunting techniques. Subscribe to Discovery UK for more great clips: http://www.youtube.com/subscription_center?add_user=DiscoveryTV Follow Discovery UK on Twitter: http://www.twitter.com/DiscoveryUK