 use this kind of technology, it could be used for any sort of a thing. But if this is all that it's going to be used for, I think it's actually a pretty good thing, and it could encourage people that might be nervous about one of these gun incidents to get back to the Mall of America. They say if a person of interest is detected, the technology will trigger an alert, and the mall said its security team will conduct up to three layers of human visual review.