It's not a threat to your freedom ... now. These systems are meant to target terrorists types. And that's not you... now. But project yourself into an America that's gone totalitarian. Trains are running to camps... You might be the target.
The systems that protect us in our day, can be switched and used against us... and that's the fear.
So we better give up our telephones, too? How about our cars? Our TVs? All travel is out, I guess?