of covert action that would make them pay a price. last thing is this, if they are using the chinese infrastructure as a way of carrying out these attacks, we've to have a more serious conversation with china. the president signed this climate agreement, everybody was patting themselves on the back. and then within a matter of weeks, china becomes the attack vehicle tore for a major terrorist effort against the united states. that's a problem. >> ambassador hill, it does seem that the leadership is split about how much more political capital should be they spending defending north korea. should the united states try to drive a wedge through there? >> i think, first of all, the chinese are never very happy to be defending hollywood. i was just in china. i was really struck with the degree to which they are just fed up, sick of the north koreans. it's a good time to really be engaging with them on north korea. i think ultimately the cyber issues -- this needs to be