This is false. Under the United Declaration of Human Rights:
"Everyone has the right to freedom of opinion and expression; this right includes freedom to hold opinions without interference and to seek, receive and impart information and ideas through any media and regardless of frontiers." an extension of John Mill's:
"Freedom of speech is the right to articulate one's opinions and ideas without fear of government retaliation or censorship, or societal sanction.
Societal sanction and interference include the loss of one's job, threats against the speaker, etc.
See: "The first step in assessing whether a particular measure or situation breaches the right to freedom of expression is to assess the threshold question of whether or not someone’s right to freedom of expression has been interfered with or restricted. ... The scope of what constitutes an interference with freedom of expression is very wide. The European Convention on Human Rights, for example, refers to any “formalities, conditions, restrictions or penalties” imposed on the exercise of the right. In many cases, it is fairly obvious that there has been an interference, for example where someone has been sanctioned for making a statement or prevented from establishing a media outlet. International courts take a wide view of this. For example, the UN Human Rights Committee held that removing a teacher from the classroom for racist statements made outside of the classroom, while keeping him employed on the same conditions, was an interference with his right to freedom of expression..."[0]
[0]http://www.law-democracy.org/wp-content/uploads/2010/07/10.0...