Frank La Rue, the United Nations special rapporteur on the right to freedom of opinion and expression, told the commission that the right to privacy was "inextricably linked" to free expression. "What is not permissible from a human rights point of view is that those that hold political power or those that are in security agencies or, even less, those in intelligence agencies decide by themselves, for themselves, what the scope of these surveillance activities are, or who will be targeted, or who will be blank surveilled," La Rue said.While the US sent four representatives to the hearing, they offered no defence, rebuttal or elaboration about bulk surveillance, saying the October government shutdown prevented them from adequate preparation. "We are here to listen," said deputy permanent representative Lawrence Gumbiner, who pledged to submit written responses within 30 days.All 35 North, Central and South American nations are members of the commission. La Rue, originally from Guatemala and an independent expert appointed by the Human Rights Council, travels the world reporting on human rights concerns – often in countries with poor democratic standards.