If you live in the United Kingdom, I'd suggest you turn off your computer and never turn it on again:

The Government will store "a billion incidents of data exchange a day" as details of every text, email and browsing session in the UK are recorded under new proposals published yesterday.

The information will be made available to police forces in order to crack down on serious crime, but will also be accessible by local councils, health authorities and even Ofsted and the Post Office.
...
However, the information will also be made available to local councils, health authorities and other Government bodies such as Ofsted.

"The main reason for it is to assist in the investigation of crime," says a Home Office spokesperson. "Each local council can make a decision for themselves on what is the most interest to them."

We're really not that much further behind here in the states either.  It's only a matter of time before this is here too.  Is there no end to this persuit of power for the "common good"?  When do people get to say... I don't want you to know about my private life just because I happen to be born here?