Re: Wow
Jamming is the least of our worries. As the recent drone swarm incident in Syria showed the tech to alter location data is out there and in use. In fact, based on that incident, the old Iran drone incident is also worth revisiting.
From this perspective, emergency services are the least of our worries. 50 000 ton displacement ferries and container ships move in port based on GPS. A ship is not a car or even airplane. Its inertia is mind boggling. Just think what can happen if the coordinates are off by 50m and the on duty officer does not notice it in time.