Major US cities are linking and have been linking cameras and audio mics from private businesses to their survellience camera networks. This has been going on since the creation of traffic cameras. Now, when you go into the gas station, starbucks, the grocery store, wherever...they are watching. Listening. The works. And if you think that they cannot understand what you are saying, then you need an education into lip-reading software that was developed by the NSA some twenty years ago.
http://redactednews.blogspot.com/2011/01/washington-deceits-expanding-public.html
http://redactednews.blogspot.com/2011/01/washington-deceits-expanding-public.html