The multi-party interim arrangement we're negotiating right now is intended to, as closely as possible, replicate the current appellate body. Because we have been looking for a solution that we could put in place fairly quickly, it does not attempt to include improvements or deviations from the current appellate body mechanism.
At this point, I think it seems unlikely that the United States, given what I've just said, would choose to join such an arrangement. If anything, the United States might, for example, decide to begin allowing for appointments to the appellate body. We wouldn't need an interim arrangement if the United States were prepared to continue with the current appellate body mechanism.