A. However, there are some worries about the use of facial recognition.
B. Facial recognition technology has several advantages.
C. Such technology is really quite safe.
D. It can quickly confirm a person's identity.
E. And we know that no two faces are exactly the same.
Humans have little difficulty recognizing （识别）each other. We may not recall a name, but we can usually remember if we've seen a face. Even twins look a little different. Each human face is truly special. So it is a good way to confirm （确认）a person's identity （身份） by seeing his face. And now we've invented machines that are able to recognize faces at a fast speed.
Governments, train stations and police services are using facial recognition （人脸识另U） technology. So a wanted criminal can quickly be picked out of millions of people. It only needs a database （数据库）with images （影像）.
Common people, too, are using facial recognition to unlock their phones, their computers. According to Apple, for example, there is only one chance in a million that someone else's face could unlock your iPhone. So you don't need to worry about its safety.
It can be done in a minute, and we don't need to memorize passwords any more. Whafs more, it's not necessary to touch the machine, especially during the COVID-19 outbreak. The device usually costs little, so it is can be used widely.
The worries are mainly about people's privacy （隐私）.Nowadays we can see more and more cameras in public-and-private places. This means people can be watched and recognized wherever they go and whatever they do.
