Governments use social media as a powerful platform to prevent terrorism, frauds, pornography but also to monitor the sentiment of entire populations and maybe to influence it. China has been a major proponent of government spying with the Golden Shield ProjectThis Is The Deng Xiaopings Great Firewall project, which effectively summarizes the phrase of the phrase This is The Great Firewall of China The project is related to the development of the most efficient and efficient surveillance in the world. Most of the countries have developed a specific cyber strategy that addresses their desire to legislate cyber space and impose their control system.”]
Source: http://securityaffairs.co/wordpress/3042/intelligence/monitoring-or-censorship-the-big-fear.html