Trevis Williams is eight inches taller than a man accused of flashing a woman in Union Square in February. The police ...

Facial recognition technology is everywhere, from your iPhone to candy vending machines to the TSA. But it has a problem: It might not recognize you.

Nearly two dozen states have passed laws regulating how tech companies collect data from our faces, eyes and voices. It comes as Congress has yet to pass any facial recognition technology.

Advocates say the technology, including facial recognition, will lead to improved security and efficiency, but some remain concerned about privacy.

Understanding the path of facial recognition technology will help us navigate what is to come with other advancements in A.I., such as image- and text-generation tools.