Customer Experience   Spurred by Amazon, Supermarkets Try Swapping Cashiers for Cameras “A man strolled down the candy aisle of a grocery store in England last month, picked up a bar of chocolate and stashed it in his back pocket. He wasn’t stealing. Specially equipped surveillance cameras were tracking both his body and the products he was taking off the shelves, to help him pay for them.” That’s right, grocery stores are using cameras to replace cashiers.   Chipotle’s Online Shift Fuels Highest....

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