American Sociological Association

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  1. The COVID-19 Pandemic: Normal Accidents and Cascading System Failures (Inequality, Poverty, and Mobility)

    Charles Perrow described the 1979 Three Mile Island nuclear reactor meltdown as a Normal Accident. Normal accidents are a class of events produced when subsystems in risky, complex and tightly coupled systems fail. Tight linkages between subsystems propagate failure, and local breakdowns cascade into systemic collapse. Diane Vaughn applied the normal accident metaphor to the 1986 Challenger Disaster.