NEW : the United States authorities give conflicting accounts over suspects . Tiffany and David Michael Hartley appear on several talk shows September 30 . Authorities from both nations are conducting separate searches and are coordinating and holding regular meetings , State Department spokeswoman Virginia Staab said . Pam Hartley disappeared Monday after pirate attack , wife says .
NEW : the United States authorities give conflicting accounts over suspects . Tiffany and David Michael Hartley appear on several talk shows September 30 . Pam Hartley disappeared Monday after pirate attack , wife says .