And why is Facebook always asking if I want to tag myself in these photos? Well, both are using facial recognition technology. So what's going on? Facial recognition is not a new thing.

A surveilance camera participates in a facial recognition test at Berlin Suedkruez station in Germany. Credit: steffi loos/Getty Images You're going down, Face ID. Researchers from Fudan ...

Business Insider got an exclusive look at the iPhone X, and, naturally, we tried to beat its facial-recognition feature by having one twin register his face and the other try to break in.