C. A. 6th Cir. [Certiorari granted, 537 U. S. 1043.] Motion of the Solicitor General for leave to participate in oral argument as amicus curiae and for divided argument granted. Motion of Exxon Mobil Corp. for leave to file a brief as amicus curiae granted. Motion of respondents Kimberly James et al. for enlargement of argument time and for divided argument, or in the alternative, for divided argument denied.