Roberts, C. J., dissenting
12–13. The problem is that today’s ruling for Cougar Den preempts the enforcement of any regulation of goods on the highway that does not concern travel safety–such as a prohibition on the possession of potentially contaminated apples taken from a quarantined area (a matter of vital concern in Washington). See id., at 13; Brief for Petitioner 44.
The concurrence says not to worry, the apples could be regulated and inspected where they are grown, or when they arrive at a market. Or, if the Yakamas are taking the apples back to the reservation, perhaps the Federal Government or the Tribe itself could address the problem there. Ante, at 10. What the concurrence does not say is that the State could regulate the contraband apples on the highway. And there is no reason offered why other contraband should be treated any differently.
Surely the concurrence does not mean to suggest that the parties to the 1855 treaty intended to confer on the Tribe the right to travel with illegal goods, free of any regulation. But if that is not the logical consequence of the decision today, the plurality and the concurrence should explain why. It is the least they should do.
I respectfully dissent.
