Nowadays, CCTV is nearby us. It is installed at bus stops, restaurants, subway stations and even in our homes. Some consider that CCTV gives us a lot of advantages, such as monitoring anonymous, and thieves and it helps to reduce crime in our lives. But in some societies, people argue that CCTV causes an invasion of privacy In my thoughts, CCTV should be used in limited situations. It is that it might cause an invasion of privacy. Most people do not like to be monitored by CCTV. The reason is that personal information can be used in a crime. For example, in 2021, some criminal monitored a woman who was heading home and checked her password, and finally trespassed on the woman’s house. Also, CCTV can monitor people’s migration. The Chinese government has been monitoring Beijing and Shanghai citizens’ migration to other cities for 10 years. They used this information to research migration data of Beijing and Shanghai’s citizens. Furthermore, it should be used only in limited ...