 The Claims Court ruled that its previous 1942 dismissal of the Sioux Fifth Amendment taking case was "res judicata" (a case already decided), "whether rightly or wrongly," thus denying the opportunity to seek 100 years' worth of interest.The case returned to the Indian Claims Commission to determine minor leftover issues about the value of rights-of-way and government offsets.In the meantime, in 1978 Sioux lobbyists persuaded Congress to pass yet another law conferring authority on the Claims Court to hear the Sioux case, this time without regard to "res judicata".