UN rights experts call for stronger protection of victims of caste-based discrimination UN official encourages Kyrgyzstan to tackle causes of 2010 inter-communal violence UN official highlights positive trends in Africa to protect indigenous people's rights Political participation by indigenous peoples in Latin America still low - UN report UN human rights chief welcomes signing of Bangladesh work safety accord by major companies Nigerian rebels could face war crimes charges for �population cleansing' - UN rights office Countries must repeal laws that discriminate against LGBT individuals - UN officials Papua New Guinea's plans to resume death penalty �major setback' - UN Justice in Guatemala vital for preventing recurrence of heinous crimes, say UN experts UN human rights chief urges Syrian rebels to end abuses after gruesome video hits Internet