"what has it got to do with anyone other than them?"

That is a question you should probably ask the UN human rights council, after all it was the UN which publicly posted the request for full disclosure from the US, up on their "news and events" web page in the first place.

If you are really interested to know more on the matter, you can contact them directly about it:

For more information and media requests, please contact: Ms. Pasipau Wadonda-Chirwa (Tel: +41 22 917 9252 / email: pwadonda-chirwa@ohchr.org) or Mr. Nikolaus Schultz (Tel: +41 22 917 9402 / email: nschultz@ohchr.org) or write to eje@ohchr.org or srct@ohchr.org.