north korea balistic missle and obama

What do you think Obama should do? Send an army to North Korea and wipe out the country because she is developing ballistic missile and nuclear weapon? Do you truly know which country in the world has the most number of nuclear warheads where if somebody is causing the most threat of nuclear war to the world, North Korea wouldn't be the biggest problem at all? Of course US should think about her action towards North Korea's latest development in weapons. But then we need to ask what the true intention North Korea actually has. Does she really want to start a war with the US with nuclear warhead? Do you really think that she would risk setting off the one and only one nuclear bomb it got in return for god know how many warheads that will be sent to her? It is fairly likely that even before the warhead is fired that it will be destroyed right away. There is just no way North Korea can develop something threatening enough for the US. So, why it is still doing all these? That's the true question to answer.