
    No. 72-6520.
    Lau et al. v. Nichols et al.
   C. A. 9th Cir. [Certiorari granted, 412 U. S. 938.] Motion of the Solicitor General for leave to participate in oral argument as amicus curiae in support of petitioners granted and 15 additional minutes allotted for that purpose. Respondents also allotted 15 additional minutes for oral argument.  