'September 9 is the 55th anniversary of the founding of the Democratic People's Republic of Korea. It is thought by some that the North Korean government might use this symbolic event to demonstrate a nuclear capability. A report by Reuters on July 26, 2003 seems to bolster this theory as an un-identified North Korean source stated that North Korea could conduct a nuclear test by Septmber 9, 2003 if the United States "continues its policy of pressure..." towards North Korea. At the Six Party Talks on August 28, 2003 various news reports indicated that the North Korean envoy had stated that North Korea was prepared to openly declare itself a nuclear power and to demonstrate such a capability through a nuclear test'.
Could happen. Imagine the reaction in Japan. Would it be underground or in true insane N-Korea style would they do an airburst somewhere over the ocean? Whole thing wouldn't be good for the mental health of 'Pana-Wave' members......

Is the whole situation going to end in this? http://www.globalsecurity.org/military/ops/oplan-5027.htm The way things are going it's getting closer every day....