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сведения, составляющие государственную тайну stresses
gen.	information classified as an official secret (Alexander Demidov); information constituting State secrets (E&Y ABelonogov); information which is a State secret (ABelonogov)
Игорь Миг	top-secret information
intell.	classified intelligence (New York Times Alex_Odeychuk)
O&G, sakh.	information classified as state secret
sec.sys.	highly classified information (Washington Post Alex_Odeychuk); government secrets (Washington Post Alex_Odeychuk); sensitive government information (Washington Post Alex_Odeychuk)

сведения, составляющие государственную тайну: 30 phrases in 6 subjects

General	8
Intelligence and security services	3
Law	2
Military	1
Notarial practice	1
Security systems	15