The modern political system is based on surveillance. Actually it is the surveillance. Read "Code Book" by Simon Singh, ISBN 1-85702-889-9. All modern state history is basically the history of surveillance.
More than that, in future not just communication devices will be used for surveillance, but any device, a photo-camera, a mixer, TV-set, etc. It is happening already now.
But every cloud has a silver lining, - if you need a private conversation, - put on a light t-shirt and shorts, no watch, not smartphone, no MP3-player, not even a pen, and go with your partner to a park, to a beach, etc. for a private conversation. It would be good not only for privacy, but for heath too. And for environment.
I envision in future important business meeting outdoors while running, or swimming, or just walking. It is the only way to achieve a relative privacy, - an unpredictable outdoor location with no electronic devices around.