I see your point but he said that she was entitled to her privacy. the ANL position was that the letter was not private. was never meant to be private and they weren't given the opportunity to present their position as to the NON-privacy OF THE LETTER. the letter was also ADDRESSED to the father so frankly he had to have some say in the matter of its privacy. If he had ALSO wanted to keep it private and it was stolen from his dresser drawer - then yes 100% it would be a breach of privacy. But that isn't the case. If it was her private diary. or an email that she sent to a friend that her housekeeper saw, printed out that gave to ANL: yes. Breach. but it was a letter that we have been told was MEANT for public consumption (by Omid), that her friends quote and referred to openly (so no longer private) and that her father willingly gave to the press to defend the mistruths that were being said about the contents of the letter, to defend the defamatory and demeaning claims that were being made about the contents of the letter. This was a letter that was seen not just by the 5guys but went through typewritten and emailed drafts that were seen and commented on by the palace aides. What we don't know is if in those drafts, or if in the letter itself, the words "private and confidential" were to be found anywhere (header, footer, "re"). That might sway me a teeny weeny bit but not much. ANL's position was that it was not a breach of privacy as the letter was NOT PRIVATE. and they weren't even given a chance to present their position.
ETA - However I am not a lawyer or a judge so I am giving a full "mea culpa" that I'm not qualified. For me, I know that ALL written communications that I write I assume that it might be seen by others that the intended (which keeps me from using 4-letter words!) and very often, to avoid any doubt, I top/tail my more sensitive (work) emails with "private and confidential" -- just to be safe. For very serious work communications, I watermark the document/communication with "private and confidential" just to be extra safe.