"In wartime they attack a part of the body that other weapons cannot reach in an attempt to affect the way which participants perform on the field of battle." (
Therefore the demonstrated tools refer to political propaganda in the two World Wars.
Propaganda has the ability to change a war, a natural evil, into a so-called "just" war. Violence then is supposedly defense, no more aggression.
TEXTBLOCK 1/1 // URL: http://world-information.org/wio/infostructure/100437611661/100438658552
Signals Intelligence (SIGINT) is a category of intelligence comprising, either individually or in combination, all communications intelligence, electronics intelligence, and foreign instrumentation signals intelligence, however transmitted. The intelligence derived from communications, electronics, and foreign instrumentation signals.