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According to the contributors to this volume, the communications media deliberately blank out critical conditions and developments whose imagery would pose unacceptable challenges to the dominant structures of culture-power. Such "invisible crises" include the suppression of information about the dehumanization and stigmatization of groups of people; the drift toward ecological suicide; the neglect of vital institutions such as public education and the arts; the way in which television corrupts the electoral process; and the promotion of practices which drug, poison and kill. The book asks why the media are, in the view of contributors, withholding vital information from the public, and focuses on the increasing concentration of culture-power that, it is argued, keeps these truths from public view.