The mouse that roared in North Korea?

Is this guy on the level, threatening America?  It's tantamount to a three year-old kid kicking me in the shins.  At first you ignore it, but after a while it becomes positively annoying.  Detente between the East and the West hit an all time low back in '63 with the Cuban crisis, but this is such a tin pot nation, at first I laughed, until I realised the true implications.  The trouble is, little people have a bad habit of getting big on the backs of people not taking the situation seriously.  Look at Hitler, just a straight corporal.  Thank God Idi Amin didn't have access to nuclear warheads - he would loved to have gone out in a blaze of glory, starting WW3.  It's no good talking about sanctions and embargoes being taken out.  Kennedy was taken out - this guy's next on the list unless he tows the line.