Fear mongering and propaganda
We can all probably remember an incident at school when a rumor was spread. It propagated fast and wide from person to person and the more it was repeated the more it was believed. Rumors are usually started by an individual or a small clique with an agenda. Eradicating the rumor was nearly impossible unless those behind it were revealed and their motives unveiled.
Swaying opinion for advantage and to increase the number of people backing your side is a way of life. The tactics of fear, hate, o