books.google.com - Normal Accidents analyzes the social side of technological risk. Charles Perrow argues that the conventional engineering approach to ensuring safety--building in more warnings and safeguards--fails because systems complexity makes failures inevitable. He asserts that typical precautions, by adding to...http://books.google.com/books/about/Normal_Accidents.html?id=VC5hYoMw4N0C&utm_source=gb-gplus-shareNormal Accidents