missile as an independence day gift to the united states. >> north korea leader kim jong-un says he won't negotiate over his ballistic programs until the u.s. ends what he calls its quote hostile policy and nuclear threat against the north. in response, the test the u.s. and south korea say they conducted a joint ballistic missile drill. and the secretary of state has released a statement calling the north koreaian test a new escalation. he says quote, global action is required to stop a global threat. we want to turn to andrew stevens monitoring the situation from hong kong. i wonder what are the suite of options, the new option for this global response to a global threat? >> well, the short answer is limited, christine. this is no doubt a significant escalation of tensions globally now from that missile firing