8 karma · joined February 24, 2016
By "personal data", if you mean the video footage of your shopping, then it will probably be deleted after a few days/weeks. It will just be used to train (reinforce) the machine learning model, and will be discarded eventually. But your shopping history will always be there, as it is now in online shopping sites...
Deterring what? "Illegal immigration" or "people walking across the border"? If it is the former, then that plan is just so stupid to be of any value. Banning transfer of money from US to Mexico to make Mexico pay for "building a 10 ft high border-wall" is ... wow, just saying that out loud feels weird.
(PS: I'm neither an American nor a Mexican!)
Update: And there are so many like that --- incredibly detailed, ordered and organic!