Also on February 17, KGB Permanent Operational Assignment assigned its agents to monitor several possible indicators of a nuclear attack. These included actions by "A cadre of people associated with preparing and implementing decisions about RYaN, and also a group of people, including service and technical personnel ... those working in the operating services of installations connected with processing and implementing the decision about RYaN, and communication staff involved in the operation and interaction of these installations."Andrew and Gordievsky, Comrade Kryuchkov's Instructions, 72.
