The Arizona police department is flying over the Tucson, Ariz., desert with a Bluetooth signal detector to detect a signal from Guthrie's pacemaker.
Police use helicopters equipped with Bluetooth detectors to search for missing Nancy Guthrie in the Arizona desert, ...
Fox News correspondent Alicia Acuna reports the latest developments in the disappearance of Nancy Guthrie as the search enters week three.
A paper on the Bluetooth signal tracking titled "Evaluating Physical-Layer BLE Location Tracking Attacks on Mobile Devices" was recently presented at the IEEE ...
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