500 U.S. 72 500 U.S. 72 111 S.Ct. 1700 114 L.Ed.2d 134 INTERNATIONAL PRIMATE PROTECTION LEAGUE and its Members, et al., Petitionersv.ADMINISTRATORS OF TULANE EDUCATIONAL FUND, et al. No. 90-89. Argued March 20, 1991. Decided May 20, 1991. Petitioners, organizations and individuals seeking the humane treatment of animals, filed suit in a Louisiana court to […]