To defend her fathers record on womens rights. Not everyone in the audience was convinced. Im katty kay In Washington. Christian fraser is in london. A Us Nuclear Submarine pulled into a south korean port today. A us Aircraft Carrier arrives there soon. And tomorrow, all 100 us senators have been invited to the white house for a really unusual secure briefing on the crisis. Is the north korea situation at a tipping point, or is this political theatre from the white house . Earlier today, pyongyang carried out a major live fire Military Exercise to mark the 85th Anniversary of the founding of its armed forces. It is thought to be planning a sixth nuclear test mr trump says it is time to take off the blindfolds and solve the problem. According to the New York Times today, heres what the Trump Administration may be looking at. For more, i spoke to former Us Ambassador to the un just a short time ago. Governor richardson, how urgent do you think the north korean situation is at the moment