C. A. D. C. Cir. Motions of Atomic Industrial Forum, American Mining Congress, and Chamber of Commerce of the United States for leave to file briefs as amici curiae granted. Certiorari granted, cases consolidated, and a total of one hour allotted for oral argument. Reported below: 219 U. S. App. D. C. 358, 678 F. 2d 222.