Big Brother Really Is Watching

 

Homeland Security is bankrolling futuristic profiling technology to nab terrorists before they strike.

As soon as you walk into the airport, the machines are watching. Are you a tourist -- or a terrorist posing as one?

As you answer a few questions at the security checkpoint, the systems begin sizing you up. An array of sensors -- video, audio, laser, infrared -- feeds a stream of real-time data about you to a computer that uses specially developed algorithms to spot suspicious people.

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