Letter from Michael Gove MP (Chancellor of the Duchy of Lancaster and Minister for the Cabinet Office, UK Government) to Nicola Sturgeon (First Minister of Scotland), Mark Drakeford MS (First Minister of Wales), Arlene Foster MLA (First Minister of the Northern Ireland Executive), and Michelle O'Neill MLA (Deputy First Minister of the Northern Ireland Executive), regarding attendance at the UK Government's Covid-19 Operations Committee, dated 30/09/2020