Lack of freedom of expression is one of the biggest violation of human rights worldwide. Every human being has the right to express their beliefs and thoughts; yet in most of the world this right is constantly denied. Governments, hoping to suppress dissent, imprison, torture, and murder individuals who speak out against them.
For more information on freedom of expression read this article by Amnesty International: http://www.amnesty.org/en/freedom-of-expression
