License-plate readers let police collect millions of records on drivers

[NoOneMan]

10. "it will ultimately serve our common interest"

Maybe. Maybe it will rather be leveraged to maximize ROI for police, by identifying the most profitable people to quickly ticket/arrest while ignoring larger offenders that may result in lengthy chases or troublesome trials. Technology such as this can--If one wished--be used to instantly flag the poor who have expired tags, parking tickets, or other outstandings who cannot afford legal representation and who will not resist arrest. In doing so, it can greatly increase the revenue a department can generate on 8 hours of an officers time, as well as avoid risk to officers or liabilities to departments (those who can afford representation).

Its a large assumption to assume instantly that massive surveillance will always and forever serve the common interest. It will serve the variable interests of the people employing it, which will change over time.