CNN - Officials Using Tool That Could Detect Bluetooth Signals from Guthrie's Pacemaker

Authorities are using a "bluetooth sniffer," a tool created by TrustedSec Founder and CEO David Kennedy, to try to catch a signal from Nancy Guthrie's pacemaker. He joins CNN to discuss the how the tool works, the possibility of using drones, and how it could help locate Guthrie's whereabouts.