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особо важная информация с ограниченным доступом stresses
intell.	code-word information (refers to one of the highest classification levels used by U.S. intelligence agencies; Washington Post Alex_Odeychuk); great intel (Washington Post Alex_Odeychuk); high-level intelligence (on ... – о ...; Washington Post Alex_Odeychuk); codeword information (Atlantic Alex_Odeychuk)
sec.sys.	restricted and sensitive information (CNN Alex_Odeychuk)