A group of mothers discover that the Santa Susana Field Laboratory was the site of one of the largest nuclear accidents in United States history; and may have exposed their children and their community to cancer-causing hazardous waste. 　　译文(2): 一群母亲发现 Santa Susana Field Laboratory 是美国历史上最大的核事故发生地之一，她们的孩子和社区可能已经接触到致癌的危险废物。