- 44 - 194. The Committee recommends that the Government continue to give priority to efforts to relieve the plight of indigenous communities, displaced persons, the homeless, and other persons living on the margins of society. The Committee urges the Government to ensure that these persons’ most basic needs are addressed, irrespective of any long-term strategy. 195. The Committee is of the view that the phenomenon of so-called "social cleansing" has not been eradicated and it recommends the utmost vigilance in this regard, in particular the punishment of the perpetrators of such crimes. The Committee also recommends that the root causes of this phenomenon be addressed with all means available to the Government. 196. The Committee urges that greater attention be given to the problem of discrimination against women and that programmes be implemented for the eradication of inequalities between men and women. Such programmes should, at the same time, aim to raise public awareness and interest in the economic, social and cultural rights of women. 197. The Committee recommends that the Colombian Government adopt all necessary measures to harmonize in practice its legislation on trade union freedom and collective bargaining with its international obligations in this regard. 198. The Committee steps to ensure for recommends that the secondary education also recommends that the Government take all necessary all the right to free primary education. It further Government take measures to improve the quality of and the material conditions of teaching staff. 199. The Committee recommends that human rights education be provided at all education levels, particularly in primary education, and also in the training of police officers, members of security and armed forces, magistrates and judges. 200. The Committee also considers that the Colombian Government should: (a) improve the training of "community mothers" and regularize their work situation, treating them for all purposes as workers in the employ of a third party; (b) combat the practice of non-utilization of budget items earmarked for social expenditure in the State’s overall budget and ensure that such appropriations are used for the purposes for which they were budgeted; (c) improve the supply of housing, especially low-cost housing for the benefit of the poorest sectors, in urban areas and also in rural areas, and allocate resources to provide the entire population with drinking-water and sewerage services. 201. The Committee considers that it would be desirable to improve the system of social statistics collection based on relevant indicators, to ensure that the Government and all institutions concerned can objectively assess the problems and progress made in the area of economic, social and cultural rights.