NEW : Captain , crew face weapons trafficking charges . The US government has charged a captain of an American cargo ship with arms smuggling and money laundering after he was caught trying to smuggle guns into the United States. They have found military weapons in shipping containers . Cubans say the equipment was bound for North Korea for repair .
NEW : Captain , crew face weapons trafficking charges . Investigators have emptied only one of five cargo holds on the ship . They have found military weapons in shipping containers . Cubans say the equipment was bound for North Korea for repair .