The dispelling comment was referring to the United States not Amnesty International. Let's put aside the question of their motives for the moment. The point is whether or not inhumane treatment is occuring and if so to demonstrate the fact one way or the other. If someone who is intent on finding something wrong has full access and can find nothing wrong, then that is exoneration. If on the other hand they are allowed access and find something (inhumane treatment) the other organizations did not find, then that calls the original process into question with regard to the inhumane treatment issue.