They are apologising for the term "anti-rights", which to me seems odd because I'd have thought it too vague to be a solid basis for a defamation claim/threat. Presumably "rights" encompass moral ones as well as existing legal ones, and thus can't be exhaustively or conclusively defined by a court?
Lee HurleyAmnesty have issued an apology to JK Rowling and the rest. Adjust your expectations, and donations, accordingly www.amnesty.org.uk/latest/an-ap...