I am not sure what you point is here? US diplomats (& members of the Blob) like their counter parts in the foreign service (UK) quite often use humour in inter

I am not sure what you point is here? US diplomats (& members of the Blob) like their counter parts in the foreign service (UK) quite often use humour in internal documents. Listen to podcasts by insiders like the bombshell's there is also a famous SIS (MI6) document about the death of Rasputin written in the style of teh Daily Mail.