here. for the vice president of the united states to be on the korean peninsula at this tense time. and also a day after north korea's biggest holiday of the year where they like to show their military might, according to an aide traveling with the vice president, this was not a matter of if, but a matter of when. and had there been a nuclear missile test and not something that clearly was not of this i will -- ilk the u.s. reaction and action could be quite different. >> thanks, dana, very much. she's traveling with the vice president. coming up, the view from inside pyongyang and how the u.s. should respond to the latest test. that's next. and their families in the developing world. we can be the generation remembered for ending the global water crisis once and for all. ♪