https://www.eff.org/deeplinks/2026/03/targeted-advertising-gives-your-location-government-just-ask-cbp

Here's the short and skinny of it. Those advertisements that are targeted at you, by Facebook, google & others.
Those very same online ad systems have been used by the government to warrantlessly track peoples' locations, as confirmed by new reports.

#Privacy #EFF #DigitalPrivacy #DataBrokers #Surveillance #CivilLiberties #SurveillanceCapitalism #PrivacyMatters

The Government Uses Targeted Advertising to Track Your Location. Here's What We Need to Do.

The online advertising industry has built a massive surveillance machine, and the government can co-opt it to spy on us.

Electronic Frontier Foundation