Responding to a flood of complaints from migrant workers worldwide, the United Nations is investigating a rash of human rights violations, including abusive working conditions, non-payment of wages, arbitrary detentions and collective illegal deportations... Although he [Jorge Bustamante, UN special rapporteur on human rights of immigrants] did not single out any countries by name, Bustamante has formally requested visits to Australia, Japan, Indonesia, Malaysia, South Korea, Mauritania, South Africa, Canada, the Philippines, the United States and Spain... The catalogue of allegations...includes...forced labour bordering on slavery; withholding passports; restrictions on the freedom of movement; and denial of the right of association and assembly.