Proxy servers?
Remember the guy who hacked Palin's email? It took the FBI almost half the morning to track him down thru a proxy server. There is no such thing as anonymous on the Interrnet. No such animal.
In short, everything you say on any kind of phone, type into email, a forum, a messenger
IS recorded and sifted thru by several departments of the US gummint. Thery even added the Pentagon to the list recently. The Pentagon has bids out. They have plans to contract out all the word recognition work.
Privacy is the stuff you whisper to your dog.