to enable refugees to exercise freely their right of return to their countries of origin voluntarily, in safety and dignity; 186. Encourages States to conclude bilateral, subregional, regional and international agreements to address the problem of trafficking in women and children, in particular girls, as well as the smuggling of migrants; 187. Calls upon States, to promote, as appropriate, exchanges at the regional and international levels among independent national institutions and, as applicable, other relevant independent bodies with a view to enhancing cooperation to combat racism, racial discrimination, xenophobia and related intolerance; 188. Urges States to support the activities of regional bodies or centres which combat racism, racial discrimination, xenophobia and related intolerance where they exist in their region, and recommends the establishment of such bodies or centres in all regions where they do not exist. These bodies or centres may undertake the following activities, amongst others: assess and follow up the situation of racism, racial discrimination, xenophobia and related intolerance, and of individuals or groups of individuals who are victims thereof or subject thereto; identify trends, issues and problems; collect, disseminate and exchange information, inter alia relevant to the outcome of the regional conferences and the World Conference, and build networks to these ends; highlight examples of good practices; organize awareness-raising campaigns; develop proposals, solutions and preventive measures, where possible and appropriate, through joint efforts by coor- 115