Another worrisome development of course is if they have weaponized to the capability of a suitcase nuke. For sure they have been infiltrating Japan like crazy with their small craft with even smaller, evasive rubber boats for landing. They could have well smuggled in either this kind of weapon or some kind of bacteriological or chemical weapon. They have a significant espionage and sabotauge network in Japan, through hundreds of agents directed through Chongryong "Federation of Korean Residents in Japan" organization from Pyongyang. The receive their nightly orders on the AM dial every night with five digit code, on 850 on the dial.
North Korea can for sure blackmail or attempt to blackmail Japan, or at least cause great damage to our military bases in Japan.
Of course, the alQaida could also in the future turn to North Korea like a supermarket for nuclear materials to construct a weapon. North Korea is without a doubt the most state terrorist country in the world, worse than Iraq IMHO.
The Democratic People's Republic of Korea's exploits in kidnapping, bombing civilian airliners, turning a whole nation into brainwashed automotons, assassinating S. Korean cabinet ministers and First Ladies, bombing jumbo jets over the Adaman Sea, spreading counterfeit US fed reserve notes throughout Asia IN DIPLOMATIC POUCHES, introducing amphetimine into Japan for hard currency and to destroy Japanese youth, tunnelling into S. Korea, sending spy subs into S. Korean waters, operating a series of terrible concentration camps along the Chinese border, starting wars, launching long range missiles right over Honshu, Japan, conducting terrorist camp training, etc., means to me that we should have concentrated on a coup d'etat or tactical attack on their nukes, chems and bios, long, long, long ago.