A/RES/55/83 against contemporary forms of racism, racial discrimination, xenophobia and related intolerance; 8. Reaffirms that acts of violence against others stemming from racism do not constitute expressions of opinion but rather offences; 9. Declares that racism and racial discrimination are among the most serious violations of human rights in the contemporary world and must be combated by all available means; 10. Expresses its profound concern about and unequivocal condemnation of all forms of racism, racial discrimination, xenophobia and related intolerance, in particular all racist violence, including related acts of random and indiscriminate violence; 11. Also expresses its profound concern about and unequivocal condemnation of all forms of racism and racial discrimination, including propaganda, activities and organizations based on doctrines of superiority of one race or group of persons that attempt to justify or promote racism and racial discrimination in any form; 12. Further expresses its profound concern about and condemnation of manifestations of racism, racial discrimination, xenophobia and related intolerance against, and stereotyping of, migrant workers and members of their families, persons belonging to minorities and members of vulnerable groups in many societies; 13. Notes with great concern that, despite the efforts undertaken by the international community at various levels, racism, racial discrimination, xenophobia and other related forms of intolerance, ethnic antagonism and acts of violence are showing signs of increase in many parts of the world, and that the number of associations established on the basis of racist and xenophobic charters is increasing, as reflected in the report of the Special Rapporteur; 14. Encourages all States to include in their educational curricula and social programmes at all levels, as appropriate, knowledge of and tolerance and respect for foreign cultures, peoples and countries; 15. Recognizes that the increasing gravity of different manifestations of racism, racial discrimination and xenophobia in various parts of the world requires a more integrated and effective approach on the part of the relevant mechanisms of United Nations human rights machinery; 16. Encourages Governments to take appropriate measures to eradicate all forms of racism, racial discrimination, xenophobia and related intolerance; 17. Calls upon all States to review and, where necessary, revise their immigration policies with a view to eliminating all discriminatory policies and practices against migrants that are inconsistent with relevant international human rights instruments; 18. Condemns the misuse of print, audio-visual and electronic media and new communication technologies, including the Internet, to incite violence motivated by racial hatred; 19. Recognizes that Governments should implement and enforce appropriate and effective legislation to prevent acts of racism, racial discrimination, xenophobia and related intolerance, thereby contributing to the prevention of human rights violations; 4