Federal agents tracked at least eight shipments , including one worth an estimated $ 165,000 . four in Six states face federal smuggling charges , U.S. attorney says . Ivory reportedly disguised as wooden snakes , guitars and statues . Elephant ivory trade illegal in U.S. since 1989 , worldwide since 1976 .
four in Six states face federal smuggling charges , U.S. attorney says . Ivory reportedly disguised as wooden snakes , guitars and statues . Elephant ivory trade illegal in U.S. since 1989 , worldwide since 1976 .