Californian is fighting heirs in Texas over the right to dig for it If Nathan Smith's plan to search for a buried treasure near the Texas Gulf Coast using Google Earth and a metal detector sounds like a Hollywood movie, it should. After all, Smith, a California musician, was inspired by the hit National Treasure movies starring Nicolas Cage. And like any good swashbuckling flick, there's a dramatic tale — this one involving cannibalized 19th-century sailors who supposedly left the pot of gold and silver behind in Refugio County in South Texas. Trying to bankroll his art by becoming a...