C. A. 8th Cir. [Certiorari granted, ante, p. 963.] Motions of parties for additional time for oral argument and for divided argument granted, and a total of one and one-half hours allotted for that purpose to be divided as follows: 45 minutes for petitioners, 25 minutes for the United States, and 20 minutes for the Omaha Indian Tribe. Motion of the Attorney General of California for leave to participate in oral argument as amicus curiae denied.