Making use of human weaknesses in intelligence work is a logical matter. It keeps coming up, and of course you try to look at all the aspects that interest you in a human being.
Markus WolfOne person can take papers, photograph them without getting excited, return them, and give them away without any scruples; while someone else has to overcome an enormous obstacle.
Markus WolfI feel that I, and the people under my command, tried to use all the traditional methods of recruiting agents which were also used by other intelligence services; adopting also means like pressure, money, sex - but that did not characterize my service.
Markus WolfYou can't do anything if a person says no. In such a case, there's nothing you can do - unlike the popular cliche that pressure is exerted, or that maybe an unwilling source is done away with.
Markus Wolf