FBI has been able to obtain warrants to listen in on in-car conversations through the roadside assistance devices installed in luxury cars.

Yes your conversations in your OnStar installed cars can be listened to on the whim of GM or the FBI.  Yes but they need a warrant you say.  Not so, if the Clandestine Services think you've associated with any of the now 1 Million people on the Terrorist Watch list then with the new FISA bill they can watch you for up to at least 7 days at a time without warrants.

Every bit of information you submit to the digital / information world is tracked, analyzed, and recorded for later use by our  government. I imagine everyone knows this, but what they don't understand is what comes next. 99% of us don't have anything to hide from the government watching our communications and Internet usage, however after monitoring comes censorship.  The first to go will be Internet Gambling, it is such an easy target .. that will start us down the slippery slope.

If we don't tell the government now that what we do online is none of their business, we will all be subject to a neutered Internet that's as 'safe' as our air travel.