WTF! It's not bad enough that we get this shit from strangers in the grocery store, our families, our doctors, advertisements, commercials, etc, now our shopping carts are going to tell us we don't need that much junk food? According to a poll, 1/3 of shoppers want this. Did anyone ask you? No one asked me.
The carts will be fitted with a computer screen and barcode scanner and will be able to give you all of the nutrition information on the package. DUH! I can read, people, I know where the label is located, I can read it myself. I can also do math, so if I was interested in calorie counts, I could keep track of that myself. If I'm not interested in keeping track of how many calories I have purchased and how many of them came from junk food, I sure as hell don't want my shopping cart nagging me.
Just another way to dumb-down people and tell them they don't know what is best for themselves.
Not to mention that I don't want my purchases tracked. It's no one's business what I buy, when I buy it, or how much of it I bought (and you know if it's done by computer, it's just a matter of time before that happens). Sorry I'm so cynical, but experience has done that to me.