A/HRC/26/50 60. The Special Rapporteur condemns any denial or attempt to deny the Holocaust and all manifestations of religious intolerance, incitement, harassment or violence against persons or communities based on ethnic origin or religious belief. He also calls for the active preservation of the Holocaust sites which served as Nazi death camps, concentration and forced labour camps and prisons. The Special Rapporteur further encourages States to take legislative, law enforcement and educational measures to put an end to Holocaust denial. 61. The Special Rapporteur notes with concern the increased use of the Internet by extremist political parties, movements and groups to proliferate, promote and disseminate racist content. In that context, the positive role that freedom of expression can play in promoting democracy and combating racist and xenophobic ideologies based on racial superiority should be stressed. Indeed, States should take all opportunities, including those provided by the Internet and social media, to counter the dissemination of ideas based on racial superiority or hatred and to promote the values of equality, non-discrimination, diversity and democracy. 62. The organization of cultural events, festivals, conferences, seminars, competitions, exhibitions, research work and publications, as well as information campaigns and other events aimed at providing a space for intercultural dialogue and interaction, are also positive initiatives which contribute to the building of a society based on pluralism, tolerance, respect for cultural diversity, multiculturalism and non-discrimination, and should be encouraged. 63. In the light of the sporting events taking place in 2014, including the XXII Olympic Winter Games and the FIFA World Cup, the Special Rapporteur calls on States to strengthen measures to prevent racist and xenophobic incidents at sporting events. He reiterates the key role of sport in promoting cultural diversity, tolerance and harmony and recommends that States take advantage of such events to promote the values of tolerance and respect. He further recalls paragraph 218 of the Durban Programme of Action, which urges States, in cooperation with intergovernmental organizations, the International Olympic Committee and international and regional sports federations, to intensify the fight against racism in sport by educating the youth of the world through sport practised without discrimination of any kind and in the Olympic spirit, which requires human understanding, tolerance, fair play and solidarity. 14