Signal blocker

Our Take

This video comes from the channel Digital ID, Mass Surveillance and Digital Currency, which has built a steady library of content poking at the broader surveillance state — digital IDs, CBDCs, and now the gadget end of the privacy fight: signal blockers. Credit to the creator for keeping these conversations visible when most mainstream outlets won't touch them.

Here's the catch for anyone watching this hoping it solves their Flock Safety problem: ALPR cameras don't need your phone's signal, your Bluetooth, or your Wi-Fi to clock your plate. They're optical. A camera takes a picture of your license plate, runs it through OCR, and logs the read with a timestamp and GPS location — all without your device ever transmitting anything. A Faraday pouch or RF jammer does nothing to stop that lens from capturing your travel patterns and feeding them into a nationwide database that police departments, and sometimes private actors, can query.

That's not a knock on the broader signal-blocking conversation — there are legitimate reasons to care about RFID skimming or phone tracking — but it underscores why ALPR surveillance needs its own fight, fought with different tools: transparency, local ordinances, and public pressure on police departments that sign contracts with Flock without public debate. If you want to see how dense this camera network actually is in your area, check our camera map, and if you're ready to push back where it counts, our take-action page has the steps that actually move the needle.