After all claims of the Klamath Tribe or any of its constituent parts or groups against the United States have been finally determined, appropriated, and distributed, as provided in sections
565a,
565b, and
565c of this title; and after all litigation expenses (including attorney fees) and costs of distributions have been paid, any funds remaining in the United States Treasury to the credit of the Klamath Tribe or any of its constituent parts or groups which, in the discretion of the Secretary of the Interior are insufficient to justify a further distribution, shall be deposited in the miscellaneous receipts of the Treasury of the United States.