In case it's of interest, I made this freedom of information request on 2 July 2014 to the US Department of State, according to the guide on the department's website. This is what I asked for:
If Scotland votes yes in a referendum on 18 September 2014, the ruling Scottish Nationalist Party has promised to expel the Trident nuclear weapons system from the British naval bases at Faslane and Coulport on the Clyde, and to no longer host the four Vanguard-class nuclear submarines that carry Trident missiles. Does the US Department of State have any records of discussions internally or with other parties since 1st January 2013 relating to the possible departure of Trident from Scotland? If so, please could I see those records, including any emails, memos, reports or other information? Thank you for your help.
I requested an expedited response, but this was rejected. I was not asked to pay for the request. More than two years later, the response arrived by post, dated 1 August 2016. It consisted of 86 pages, most of which were blank. There were seven daily reports from the US Embassy in London to Washington, and seven "scenesetters" prepared for UK visits by senior US officials. The only sections of text that were disclosed were those about Trident in line with my request, and some were repeated several times. The many pages of empty space were comments on other matters that were redacted as "non-responsive portions".
I scanned all the pages that contained anything of potential interest, avoiding the blank pages and repeated text, and that's what can be read on our website. I would be happy to answer any questions about this freedom of information request.