The news that messaging by BlackBerry (BB) is banned in several countries because the BB encrypts messages probably confirms what we always suspected and that is our phone calls and sms messages are monitored by somebody, somewhere. If you also accept that everything you do on the Internet, such as e-mails, online searches and browsing, is also monitored then you start to see how 'Big Brother' organisations can build up a very detailed profile of you.
It's assumed that government organisations are the major players in this area but let's not forget Google. Google started out with search engines that tracked what you searched for. Unfotunately, that didn't let them know what sites you were visiting so they brought out the Chrome browser and site tracking codes. Unfortunately, if you used Firefox browser they still didn't know what sites you were visiting so they brought out free, hi-speed DNS servers. Then they didn't know what you were doing with your mobile device so they brought out Android OS.
Paranoid? Maybe but then why is there a product in the market-place like Google-Alarm, a Firefox add-on that warns you everytime data is collected from your computer and sent to Google servers. If you too are paranoid then maybe you should check it out.
Footnote: With the spread of smartphones and location based apps, authorities can track you in real-time to within feet of your actual location. The tracking technology used in Will Smith's movie Enemy of the State is pretty much how it is. Looking over your shoulder yet......