One of the more covert technologies they employ is ID-Dust, serialized dust particles that can be interrogated like a RFID tag. The NOX team can coat a person or object with it to track movement. ID-Dust can show if an item was handled or it can even be sprinkled on the floor. People unknowingly pick up the ID-Dust on their shoes as they travel through a dusted area. The software combines the video surveillance and RFID information to create an association between the ID-Dust and a person. The ID-Dust allows the person's movement to be tracked around a facility without the person ever knowing he or she is being tracked. While a criminal can easily defeat the motion sensors, the ID-Dust provides covert security with instant alerts when someone enters an area, plus a complete history of exactly where each person traveled and when.

Great. (Not)