A moral panic is a feeling of fear spread among a large number of people that some evil threatens the well-being of society.A Dictionary of Sociology defines a moral panic as "the process of arousing social concern over an issue – usually the work of moral entrepreneurs and the mass media". The media are key players in the dissemination of moral indignation, even when they do not appear to be consciously engaged in crusading or muckraking. Simply reporting the facts can be enough to generate concern, anxiety, or panic. Stanley Cohen states that moral panic happens when "a condition, episode, person or group of persons emerges to become defined as a threat to societal values and interests". Examples of Moral Panic include the belief in widespread abduction of children by predatory hebephiles or paedophiles, belief in ritual abuse of women and children by satanic cults, the War on Drugs, and other Public Health Issues.
Marshall McLuhan gave the term academic treatment in his book Understanding Media, written in 1964. According to Stanley Cohen, author of a sociological study about youth culture and media called Folk Devils and Moral Panics (1972), a moral panic occurs when "...[a] condition, episode, person or group of persons emerges to become defined as a threat to societal values and interests". Those who start the panic when they fear a threat to prevailing social or cultural values are known by researchers as moral entrepreneurs, while people who supposedly threaten the social order have been described as 'folk devils'.
Many sociologists have pointed out the differences between definitions of a moral panic described by American and British sociologists. In addition to pointing out other sociologists who note the distinction, Kenneth Thompson has characterized the difference as American sociologists tending to emphasize psychological factors while the British portray moral panics as crises of capitalism.