On average I have been shopping in a Walmart more than once a week for more than six years. So I saw the rollout of checkout cameras. There's almost certainly

On average I have been shopping in a Walmart more than once a week for more than six years. So I saw the rollout of checkout cameras. There's almost certainly facial recognition and radio frequency thumbprinting involved in the whole process of shrinkage mitigation because: 1. The first systems I saw had a camera pointed at me and a display showing that image. There are still some of these systems deployed, but the more recent one's don't show a selfie shot...but I am not naive enough to believe my face isn't being captured. 2. I take my phone in the store with me. A big box store has some properties similar to a faraday cage, yet the cellular signal is strong enough to suggest internal hotspots. Walmart would be foolish not to try to negotiate data access with providers. Walmart is not foolish and has the leverage to negotiate such a relationship...I mean they even sell cell phone plans in their stores. 3. I use the Walmart app in the store to find things on my list because all Walmarts are little different. So Walmart has my exact location and ID. 4. All of this data gets validated when I pay by credit card. 5. And of course there are cameras in the parking lot and my van has a license plate. A privacy nightmare? No more than the rest of the world. This stuff goes on everywhere there is sufficient technology 24/7 for far less reasonable reasons. Though YMMV of course.