Given the state of telephone systems, I doubt that even landlines will work in the event of large power outages.
What they cannot hear, they can see.
You Have To SEE This......
Hard to disappear in a crowd….The Feds can see you everywhere….
Pick on a small part of the crowd click a couple of times — wait — click a few more times and see how clear each individual face will become each time. You can also use the Zoom In and Zoom Out on the left of the picture screen.
This picture was taken with a 70,000 x 30,000 pixel camera (2100 Mega Pixels.) These cameras are not sold to the public and are being installed in strategic locations. The camera can identify a face among a multitude of people. Place your computer’s cursor in the mass of people and double-click a couple times. Scary sharp!! George Orwell must be smiling somewhere out there.
http://www.gigapixel.com/image/gigapan-canucks-g7.html