Hello and welcome to worldview with me Suhasini Haider, tonight she is back from the stars and after her second stint at the international space station. Astronaut Sunita Williams is our special guest ahead on our show, also our continuing focus on Pakistan elections, today a startling new survey, how the youth will vote. Our guest Wajahat Khan, a journalist in Islamabad, but we begin in the Korean peninsula, where after weeks of angry words worries have grown of a possible war, particularly after the North Korean army moved a missile system to its east coast after reports that the US had moved missile interceptor batteries to protect its bases on the island of Quam. The DPRK's military statement then said in quote 'an explosion could happen soon, given the levels of tensions'. But worried should we be, lets go across to CNN's Jim Clancy there in Seoul.