I agree, I hate big brother. But they can invade your privacy without court orders through the patriot act way easier.
They can point crap at your house and listen for years. If out of the millions of people in the country you are on their radar you are screwed anyway.
Be more concerned about "The History of your driving" through the computer on board the car. If you hit someone at they believe you were driving too fast they can use it against you.
Hey maybe American Idol will be listening through Onstar for next years contestant, I can rip out a pretty good Stairway to Heaven.
Do they take 39 year olds?