Privacy

Nah, that's public space and such. Flock will need specific legislation to defeat which is a problem when most congress critters are bought and paid for.

Only if the gov't is using that data. Then that data is inadmissible in court and if used/abused can carry swift significant consequences. If private companies (aka gov't funded public troff whores) continue to abuse it, unless met with pushback by civil lawsuits, the abuse will continue.