I'm certainly aware there's a number of techniques they use. I think what you're referring to are the RFID chips they're putting into products so they can do the traceability from the factory through the distribution network. That's certainly one of the applications.
There are two types of labels. We have overt, which is easy to see. That might be a hologram, but that too can be copied. It's a cat-and-mouse game. There are also covert techniques that can be used. In the testing area, I think industry, and I know our association, the UL, are also trying to take actions to determine anything legitimate. There's a whole bunch of techniques that are being used, and there's a business that has actually come out of this.
So there are different techniques being used by manufacturers and testing organizations and traceability systems.