Mass media are necessary tools for the "centre" and "authority" to maintain the social order or reduce the uncertainties.

而大众媒介则是“中心”或“权威”维持社会秩序或者说减少不确定性的必不可少的工具。

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Jean Paul Rouiller from the Geneva Centre for the Training and Analysis of Terrorism says social media is vital to modern terrorist organizations.

CNN: How terror can breed through social media