I've been wondering for a while why the North Korean government wants to deal straight with the U.S. instead of it's neighbors. Powell sums it up nicely in the quote below.
North Koreans desperately want to make this a U.S.-North Korean problem
to see what else they can ask us for, to pay them, to reward them for
their misbehavior," he said. "And we have chosen not to do that, not to
get caught in their trap again."