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Mass surveillance is the intricate surveillance of an entire or a substantial fraction of a population in order to monitor that group of citizens.〔(【引用サイトリンク】url=https://www.eff.org/issues/mass-surveillance-technologies )〕 The surveillance is often carried out by governments or governmental organisations, but may also be carried out by corporations, either on behalf of governments or at their own initiative. Depending on each nation's laws and judicial systems, the legality of and the permission required to engage in mass surveillance varies. Mass surveillance has often been cited as necessary to fight terrorism, to prevent social unrest, to protect national security, to fight child pornography and protect children. Conversely, mass surveillance has equally as often been criticized for violating privacy rights, limiting civil and political rights and freedoms, and being illegal under some legal or constitutional systems. There is a fear that increasing mass surveillance could lead to the development of a surveillance state or an electronic police state where civil liberties are infringed or political dissent is undermined by COINTELPRO-like programs. Such a state could also be referred to as a totalitarian state. In 2013, the practice of mass surveillance by world〔 〕 governments was called into question after Edward Snowden‘s 2013 global surveillance disclosure. Reporting based on documents Snowden leaked to various media outlets triggered a debate about civil liberties and the right to privacy in the digital age. ==By country== Privacy International's 2007 survey, covering 47 countries, indicated that there had been an increase in surveillance and a decline in the performance of privacy safeguards, compared to the previous year. Balancing these factors, eight countries were rated as being 'endemic surveillance societies'. Of these eight, China, Malaysia and Russia scored lowest, followed jointly by Singapore and the United Kingdom, then jointly by Taiwan, Thailand and the United States. The best ranking was given to Greece, which was judged to have 'adequate safeguards against abuse'.〔(【引用サイトリンク】title=Surveillance Monitor 2007 - International country rankings )〕 Many countries throughout the world have already been adding thousands of surveillance cameras to their urban, suburban and even rural areas. For example, in September 2007 the American Civil Liberties Union (ACLU) stated that we are "in danger of tipping into a genuine surveillance society completely alien to American values" with "the potential for a dark future where our every move, our every transaction, our every communication is recorded, compiled, and stored away, ready to be examined and used against us by the authorities whenever they want." On 12 March 2013 Reporters Without Borders published a ''Special report on Internet Surveillance''. The report included a list of "State Enemies of the Internet", countries whose governments are involved in active, intrusive surveillance of news providers, resulting in grave violations of freedom of information and human rights. Five countries were placed on the initial list: Bahrain, China, Iran, Syria, and Vietnam.〔(''The Enemies of the Internet Special Edition : Surveillance'' ), Reporters Without Borders, 12 March 2013 〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Mass surveillance」の詳細全文を読む スポンサード リンク
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