All diplomats attending the UN general assembly in New York next week will have to provide proof of vaccination, the city government has confirmed, prompting an angry response from Russia. Delegates must be vaccinated to enter the debate hall, the mayor’s office told the assembly president in a letter dated 9 September.... Russia’s ambassador...Vassily Nebenzia...described it as “a clearly discriminatory measure”, adding that preventing delegates to access the hall was a “clear violation of the UN charter”....