alt Hacker News> I'm really curious how dystopian we actually are
No idea how widespread it is, but in Singapore airport the system is tightly integrated. You are "tagged" when you check in, and "tagged out" as you board, with your appearance associated with your intended flight details. If you miss your flight or otherwise spend too much time in the secure zone, you are highlighted in the system and will eventually be approached. Arriving passengers are also given a time limit to take their next action, be it clear immigration or enter transit, and lingering will also trigger a response.
All in the name of safety and security but I can't help but feel a measure of discomfort with it all.
Fun fact: ~80% of Singaporeans live in public housing and all the entryways to those buildings are filled with (offical) police security cameras, including two in each lift. The cameras extends to the nearby carparks, carpark gantry (to ID the driver), bus stops (and on the bus) so all movement can be monitored. Private housing do not have such police security cameras because the estate is gated and have their own security guards, not that crime is much of an issue there. Dystopia for the masses?