Do you know what 'Trust' Land is? The State was not authrized to purchase the land, and the indians wo sold it were not authorized to sell it... the land was actually owned and adminstered by the feds, who told the state 'No!' (which, oddly enough, was one of the few times the feds have actually tried to honor treaty commitments), but for some reason they (the State of New York) didn't listen, and so now this is happening...
And now, once again, the indians are bad guys... go figure..
Whether the Federal Government told the state "no" at the time of or after the purchase is more disputed that the tribe would have us believe.
In any event, that argument again fails to explain why the doctrines of laches, collateral estoppel or statute of limitations should not apply 200 years later in the case of the tribes, just as it would for any OTHER legal matter. The only reason it wasn't applied from the beginning was "PC," and the hopes that we (the United States) could buy off the Indians with a state park in a rural community and some cash.