As with most surveillance, there hasn't been much misuse of the data yet. The things I worry about for the future: 1. Evidence of everybody breaking the law.

As with most surveillance, there hasn't been much misuse of the data yet. The things I worry about for the future: 1. Evidence of everybody breaking the law. (In this case, speeding). If everybody is in violation of the law, the government can choose who to prosecute. 2. Extortion. You might not care about privacy from big brother, but what if your friends and family were to know everything you had ever SMS'd? One day, boom, that might happen to everybody with a low credit score. Everybody else would need to pony up if they want their data kept secret. 3. Data leaks. With these huge vaults of private information, some is bound to leak before too long. Once the data is leaked, there is no putting it back. Eventually, all recorded data from this time period will enter the public record.