1. Whether 5 U.S.C. § 702 waives the sovereign immunity of the United States from a suit challenging its title to lands that it holds in trust for an Indian tribe. 2. Whether a private individual who alleges injuries resulting from the operation of a gaming facility on Indian trust land has prudential standing to challenge the decision of the Secretary of the Interior to take title to that land in trust, on the ground that the decision was not authorized by the Indian Reorganization Act, ch. 576, 48 Stat. 984.