That self-driving car parked in your garage is a sophisticated computer on wheels. It's probably got better WiFi than your house. It knows when you are sleeping, it knows when you're awake. It knows when you are bad or good, so beware the NSA. If you pay your bills while the car drives you to work, hackers could pick your account numbers out of the air. Or you could find yourself in the middle of a plot worthy of a Matt Damon action movie, with your car's computer under the control of the Russian mob while on its way to pick up drugs you've never heard of down by the docks at one in the morning. Some are hoping that the potential to monitor an individual's movement in the real world — not just online — will drag our privacy protections into the modern era. Some others are like, "Sure, I'll help you out, Mr. Nigerian prince." Let's hope that first group takes the lead on this one.