The progress of facial recognition within anytime soon would have systems inside shops to recognize you as the buyer and also it recognize what products you pick up and just have to pay at the register without them having to scan at the register or even just walk out of the shop and you will pay through the system. But also this technique would comply with stealing, it will be not possible to walk out of a store without paying mostly have a security making sure you would show your face. However recognition would also not just come with face detections but also with any personal devices as gps, wifi or any connection. Would make the shops flow so much quicker, no lines at the counter but that be mostly far in the future where you simply automatically would pay. By then we would look back and say why did you had to stand in lines to pay.