Flock -- an automatic license-plate-reading service -- is adding tons of data sources ...
... so police could, upon scanning your license, get linked to tons more info about your life, relationships, etc
where did Flock get these additional sources of info?
they're using standard people-lookup tools and data brokers, but also ...
... info from *data breaches*
so great
@404 Media has the story: 
unpaywalled version: https://archive.is/GmuUk
404 Media
License Plate Reader Company Flock Is Building a Massive People Lookup Tool, Leak Shows
Flock, which has license plate readers (LPRs) all around the country, wants police to be able to “jump from LPR to person,” according to leaked...