secretary of state is any region at making some big claims. mike pompeo says the us hopes to see major north korean disarmament by the end of 2020. he is in south korea discussing the outcome of the summit and travels to beijing later. he admits there is still a great deal of work to do with north korea. saudi backed forces in yemen attack the main port. aid agencies are warning of a humanitarian disaster, because crucial supplies won't get through. a new study says antarctica lost 3 trillion tons of light because of global warming in the past quarter century. —— ice. we meet the youngest man to visit every country on earth. this is bbc world news. it's newsday. thanks forjoining us. it is 7am in