Berezovo had been life-trained in security work, particularly that having to do with Soviet security problems in North America, where this killer would operate. If a normally conditioned Anglo-Saxon could be taught to kill and kill, then to have no memory of having killed, or even of having had the thought of killing, he could feel no guilt. If he could feel no guilt he could not fall into the trap of betraying fear of being caught. If he could not feel guilt or the fear of being caught he would remain an outwardly normal, productive, sober, and respectful member of his community so that, as Berezovo saw it, this killer was very close to being police-proof and the method by which he was created must be very, very carefully controlled in its application to other men within the Soviet Union. Specifically, within Moscow. More specifically within the Kremlin.

–The Manchurian Candidate by Richard Condon