The whole situation is described in detail in: The Nuclear Frame-up of North Korea
by Gregory Elich at
http://globalresearch.ca/articles/ELI307A.htmlRead the above article to gain an idea at what is going on. The snippets from so called journalists and foreign affairs experts are entirely devoid of historical context or reliable factual information. Media accounts are based upon unfounded assumptions and government pronoucements. Of course this article is lengthy because it is based upon an honest effort to take a comprehensive look at what has happened in N.Korea recently, and how it relates to American Korean interaction. I'm not claiming that this article is infallible but it will provide the basis for a better informed position.
On this thread specifically:
What nation has authority to seize or interfere with missile shipments by N.Korea. What is the international law that permits this?
As of yet, N. Korea probably doesn't have "weapons of mass destruction." It is trying to develop its nuclear program. It does have IRBMs. It restarted its nuclear program which may also be directed toward weapons production after the American breaches of the agreed framework. Our administration apparently had no intention of complying with the the agreed framework preferring to anticipate a collapse of N. Korea.
According to the Russians, N.Korea is incapable of producing deliverable nuclear warheads in the near future. If the N. Korean nuclear weapons program is producing plutonium which it may be, it would be unlikely to be exported at this point; it would be needed for weapon production at home. It is the export of unregulated N.Korean missile technology to Islamic nations which is freaking out the neo cons and is not subject to international control. These nations have alternative sources of plutonium and nuclear weapon technology.
We could easily negotiate an agreement with N.Korea to eliminate these problems at a small cost in comparison to the security efforts undertaken in response including, NMD and war readiness. The N. Koreans have demonstrated a willingness to end these programs in exchange for something akin to normalization of relations. The humanitarian crisis is something that the administration prefers to use as a weapon. The refusal of our regime to negotiate is dead wrong.