Will Japan ever overcome its distrust of foreigners? This question has been forcefully posed in various guises, most notably perhaps by the United Nations Special Rapporteur on human rights Doudou Diene. In 2005 he concluded after a nine-day investigation in Japan that the authorities were not doing enough to tackle what he called Japan's “deep and profound racism” and xenophobia, particularly against its former colonial subjects. The report appeared to vindicate the work of campaigners such as naturalized Japanese Arudou Debito, who argue that Japan needs, among other things, an antidiscrimination law.