British officials believed Japan would covertly monitor their discussions and activities at the Group of Seven summit in Tokyo in 1979, according to recently declassified documents.Security experts warned the Japanese could be recording information via the equipment supplied to the British delegation's office, located on the grounds of the neo-baroque state guest house Akasaka Palace, a minute marked 'secret' reveals.Nancy Deeves, an official at the Foreign Office's protocol and conference department, wrote to the 'PS/PUS' -- abbreviations referring to the private secretary to the Foreign O…READ FULL ARTICLE