Original sentence: Anatoliy Mikhaylovich Golitsyn CBE (born August 25, 1926 in Piryatin, Ukrainian SSR) is a Soviet KGB defector and author of two books about long-term deception strategy of the KGB leadership.He supplied information about many important Soviet agents working in the West
Edited sentence: " Golitsyn supplied information about many important Soviet agents working in the West.Anatoliy Mikhaylovich Golitsyn CBE (born August 25, 1926 in Piryatin, Ukrainian SSR) is a Soviet KGB defector and is described by Professor Christopher Andrew, the Official Historian of the Security Service (MI5), as "an unreliable conspiracy theorist