Last time North Korea did nuclear test, Comprehensive Nulcear-Test-Ban Treaty Organization(CTBTO)&#x27;s radionuclide monitoring station at Takasaki, Japan successfully detected Xenon. So let&#x27;s wait for CTBTO.<p><a href="http:&#x2F;&#x2F;www.mofa.go.jp&#x2F;press&#x2F;release&#x2F;press3e_000001.html" rel="nofollow">http:&#x2F;&#x2F;www.mofa.go.jp&#x2F;press&#x2F;release&#x2F;press3e_000001.html</a><p>By the way, CTBTO has a website: <a href="https:&#x2F;&#x2F;www.ctbto.org&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.ctbto.org&#x2F;</a>