Newly released WikiLeaks publications from the Stratfor leak reveal much about Trapwire, a multi-country surveillance network run by a private US company, Abraxas, led by ex-CIA operatives. The network operates in NYC subways, the London Stock Exchange, Las Vegas casinos, and more. It uses real-time video facial profiling and is linked to red-flag databases.
Here is a US GOV pdf diagramming its workings. Here is an RT article on the subject.
The WikiLeaks publications related to Trapwire are difficult to access now because WikiLeaks.org and many of its mirrors are under heavy DDOS attack. (Good time to donate!) However you can see the publications here via Tor.
Australian activist @Asher_Wolf is organizing a nonviolent campaign against Trapwire, including an effort to spam the network with creative false positives.
TrapWire: International Surveillance Coordination Network