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Privacy leakage has almost become one of the most serious surveillance security problems. When people use the Internet, their identity information and all browsing paths are unconsciously monitored by the country or even businesses, making people's information unknowingly become a tool used by criminals to seek profits. And exposing the privacy not only affects people's life from the technical level, but also has a real negative impact on people from the physiological level, such as causing people's Nervous tensions, Insomnia, Fatigue, Accidents, Lightheadedness, and less control over reflexes......

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Sometimes, "ethnic minorities are more likely to be intercepted or arrested than whites in similar situations" (Jeffrey, 2), because surveillance is not about watching everyone's body, but watching through the eyes of white people (Browne).

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The CCTV on the road are linked to a central database of national traffic safety authorities, and once someone gets into a traffic accident, the police could quickly locate the causing-trouble vehicle through this system, and restore the process of the case, and then the insurance company also could provide follow-up support to the victims according to the records.

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Guarantee the Health of Citizens and Effectively Controlled the Epidemic.

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Guarantee the Health of Citizens and Effectively Controlled the Epidemic.

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In the COVID-19 pandemic that swept the world in 2020, the Chinese government monitored the biometric information of citizens to divide the QR codes of healthy people, those at risk of infection, and those who had been infected into green, yellow and red.  And the government uses these QR codes to track people's movements and scrutinize their eligibility to enter public areas. Such “surveillance” can maximize environmental safety in a sense, and also make national medical and health care authorities access patient travel information as fast as they could when a new case is discovered.

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The government organizes citizens’ identity data, such as fingerprints, blood type, and DNA into one large but very ordered database, which can effectively prevent crime from three aspects:
-Prevention: taking data from disparate sources, analyzing them, and then using results to anticipate, respond more effectively to future crime (Pearsall, 2010, P. 16).
-Tracking: when a crime is inevitable, the police can also compare the subtle traces left by the suspect at the scene, and then easily locate the criminal.
-Deterrence: Criminal records will also be kept on personal files for future police monitoring and tracking.
Police monitoring databases can help prevent crime.

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Excessive surveillance would direct this behavior into a negative and distorted direction that threatens our daily lives. Meanwhile, due to the huge gap between the rights of the surveillance and the monitored that citizens almost have no choice to overturn the power of the current government's surveillance organization, they will have a deep distrust of the governments' or businesses' surveillance sometimes.

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Most surveillance is practiced with a view to enhancing efficiency, productivity, participation, welfare, health or safety. And it's actually a way to help governments investigate and supervise their citizens. In other words, the existence of surveillance could protect the legitimate rights and interests of citizens and their personal safety.

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With the rapid development of the Internet and technology, surveillance has gradually infiltrated all areas of our lives. When people enjoy the convenience brought by them, they inevitably find that their private and detailed data and information are monitored by businesses and even the government that controls the Internet. However, But it's worth noting that surveillance is neither good nor bad in itself, and all the impact depends on how to use it.