appeal to fear

An appeal to fear (also called argumentum ad metum or argumentum in terrorem) is a fallacy in which a person attempts to create support for an idea by attempting to increase fear towards an alternative. An appeal to fear is related to the broader strategy of fear appeal and is a common tactic in marketing, politics, and media (communication). Logic This fallacy has the following argument form: Either P or Q is true. Q is frightening. Therefore, P is true. The argument is invalid. The appeal to emotion is used in exploiting existing fears to create support for the speaker's proposal, namely P. Also, often the false dilemma fallacy is involved, suggesting Q is the proposed idea's sole alternative.