C. A. 8th Cir. Certiorari granted. Brief of petitioners is to be filed with the Clerk and served upon opposing counsel on or before 3 p.m., Thursday, November 13, 1997. Brief of respondent is to be filed with the Clerk and served upon opposing counsel on or before 3 p.m., Monday, December 15, 1997. A reply brief, if any, is to be filed with the Clerk and served upon opposing counsel on or before 3 p.m., Monday, January 5,1998. This Court’s Rule 29.2 does not apply.