C. A. 7th Cir. [Certiorari granted, 472 U. S. 1007.] Motion of Chicago Teachers Union, Local No. 1, and Board of Education of City of Chicago for leave to file a joint brief granted.
C. A. 7th Cir. [Certiorari granted, 472 U. S. 1007.] Motion of Chicago Teachers Union, Local No. 1, and Board of Education of City of Chicago for leave to file a joint brief granted.