Topic summary
fearmonger

Extracted from the Wikipedia article Fearmongering.
Theory
Fearmongering can have strong psychological effects, which may be intended or unintended. One hypothesized effect is mean world syndrome in which people perceive the world as more dangerous than it really is. Fearmongering can make people fear the wrong things, and use too many resources to avoid rare and unlikely dangers while more probable dangers are ignored. For example, some parents have kept their children at home to prevent abduction while they paid less attention to more common dangers such as lifestyle diseases or traffic accidents. Fearmongering can produce a rally around the flag effect by increasing support for the incumbent political leaders. For example, official warnings about the risk of terrorist attacks have led to increased support for the proposed policies of US Presidents.