The art and science of retail shopping continues to advance with new technologies. There's been a lot of focus on RFIDs lately, especially with Wal-Mart's embrace of the technology, but it seems that Wal-Mart intends to go even further. They want to use infrared beams to track shoppers' movements throughout the store, and then use a computer system to compare it to sales. In other words, if you linger for a while in front of a certain display before ultimately buying a product, they want to know it, and use that info in the future. Apparently, a trial version of the system is already underway in 10 Wal-Mart locations, with the hope that other retailers will jump on board as well.
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