Every monitoring system eventually is used for social control, despite the best intentions of the creators. This is as true in the "public" domain as it is in

Every monitoring system eventually is used for social control, despite the best intentions of the creators. This is as true in the "public" domain as it is in the private workplace. In this instance we will soon hear a hue & cry for monitoring of the drug levels in public waterways and sewers. To ensure no crime goes unpunished, that will be followed by the creation and use of systems that track drug use to the individual household (if such systems don't already exist). The information from such systems will be handed over to law enforcement et al, who will use it the same way they use all other information from monitoring devices. As the ACLU predicted years ago, this information will be shared with 3rd parties to the degree that, should you order take-out pizza with cheese, you will receive an e-mail warning from your insurance company that your premium may increase if you don't control your diet better. Now, by monitoring your sewer (indeed all your inputs and outputs), your insurance company (and others) can ensure that you don't make that cheese or that pizza yourself on the sly. There is no escape.