488 U.S. 299 109 S.Ct. 609 102 L.Ed.2d 646 DUQUESNE LIGHT COMPANY and Pennsylvania Power Company, Appellantsv.David M. BARASCH, etc., et al. No. 87-1160. Argued Nov. 7, 1988. Decided Jan. 11, 1989. Syllabus In 1967, appellant Pennsylvania electric utilities joined a venture to construct seven nuclear generating units. But in 1980, because of intervening events, […]