Militaries around the world spend countless hours training, developing policies, and implementing best operational security practices, so imagine the size of the egg on the face of the Dutch navy when journalists managed to track one of its warships for less than the cost of some hagelslag and a coffee. The security snafu was reported by Dutch regional broadcaster Omroep Gelderland. In a Thursday report, Omroep Gelderland journalist Just Vervaart said the broadcaster was able to track HNLMS Evertsen, a Dutch air-defense frigate deployed to help protect France’s aircraft carrier Charles de Gaulle against missile threats, by mailing a Bluetooth...