There are limitations in many countries on "Hate Speech"
http://en.wikipedia.org/wiki/Hate_speech"Proponents of limitations on hate speech argue that repeated instances of hate speech do more than express ideas or expresses dissent; rather, hate speech often promotes and results in fear, intimidation and harassment of individuals, and may result in murder and even genocide of those it is targeted against. As such, historical revisionism is thought to be a form of propaganda which, deleting memory of real events, allows them to repeat themselves."
"n many countries, deliberate use of hate speech is a criminal offence prohibited under incitement to hatred legislation.
Some examples:
Holocaust denial is outlawed in seven European countries as a form of hate speech, while the Council of Europe has passed laws against any type of revisionism, defined as denial or minimization of genocides or crimes against humanity.
In the United Kingdom, incitement to racial hatred is an offence under the Public Order Act 1986 with a maximum sentence of up to seven years imprisonment.
In Germany, Volksverhetzung (incitement of hatred against a minority) is a punishable offense under Section 130 of the Strafgesetzbuch (Germany's criminal code) and can lead to up to five years imprisonment. Volksverhetzung is punishable in Germany even if committed abroad and even if committed by non-German citizens, if only the incitement of hatred takes effect within German territory, e.g. the seditious sentiment was expressed in German writ or speech and made accessible in Germany (German criminal code's Principle of Ubiquity, Section 9 §1 Alt. 3 and 4 of the Strafgesetzbuch).
In Ireland, the right to free speech is guaranteed under the Constitution (Article 40.6.1.i). However, the Prohibition of Incitement to Hatred Act, proscribes words or behaviours which are "threatening, abusive or insulting and are intended or, having regard to all the circumstances, are likely to stir up hatred" against "a group of persons in the State or elsewhere on account of their race, colour, nationality, religion, ethnic or national origins, membership of the travelling community or sexual orientation." <1>
In Canada, advocating genocide or inciting hatred against any 'identifiable group' is an indictable offense under the Canadian Criminal Code with maximum terms of two to fourteen years. An 'identifiable group' is defined as 'any section of the public distinguished by colour, race, religion, ethnic origin or sexual orientation.' It makes exceptions for cases of statements of truth, and subjects of public debate and religious doctrine. The landmark judicial decision on the constitutionality of this law was R. v. Keegstra (1990).
In Iceland, the hate speech law is not confined to inciting hatred, as one can see from Article 233 a. in the Icelandic Criminal Code, but includes simply expressing such hatred publicly:
"Anyone who in a ridiculing, slanderous, insulting, threatening or any other manner publicly assaults a person or a group of people on the basis of their nationality, skin colour, race, religion or sexual orientation, shall be fined or jailed for up to 2 years." (The word "assault" in this context does not refer to physical violence, only to expressions of hatred.)
Victoria, Australia has enacted the Racial and Religious Tolerance Act 2001, which prohibits conduct that incites hatred against or serious contempt for, or involves revulsion or severe ridicule of another on the grounds of his race or religious beliefs.
New Zealand prohibits hate speech under the Human Rights Act 1993. Section 61 (Racial Disharmony) makes it unlawful to publish or distribute "threatening, abusive, or insulting...matter or words likely to excite hostility against or bring into contempt any group of persons...on the ground of the colour, race, or ethnic or national or ethnic origins of that group of persons." Section 131 (Inciting Racial Disharmony) lists offences for which "racial disharmony" creates liability.
France has made hate speech laws restricting the open expression of anti-Semitism, and ethnic bias in public, but it implies to guidelines in news journalism (i.e. newspapers and state-owned Television) in how to report (or be told not to discuss) those matters without creating social tension.
Singapore has passed numerous laws that prohibit speech that causes disharmony among various religious groups. The Maintenance of Religious Harmony Act is an example of such legislation. In 2005, three men were convicted for hate speech under the Law of Singapore.
California, USA laws may declare hate speech is protected in public, but allows easy prosecution for alleged hate crimes, in verbal form as well in physical form. California law claims hate speech at the workplace does not constitute as "protected speech" and employers have the right to terminate or discharge those who committed hate speech on workplace grounds."