defense. isis is touting their drone c e capabilities and how prepared we are here. listen. >> unfortunately i don't think we are ready. we don't have this type of technology, both the detection, and counter measure technology in place yet. >> use of drones by terrorist fuel ago -- fuelling a counter drone industry. drone shield offers ability to detect a drone by sound. department 13 offers software to detect unwanted drones and allows you to take full control of it. these companies biggest customer is dod, military continues to