BBC - Newsnight: Susan Watts: No noble gas from North Korea blast
But there was one thing everybody in the room wanted to know. Had the network of sensors picked up radionuclides from the North Korean explosion two weeks ago? Seismologists here today say they are comfortable that explosion was a nuclear test, but detecting radionuclide evidence in the form of radioactive gas is the "smoking gun". And the big news here is that they have not found that signal. Full Story »
Posted by Glenn LaBauve
This bothers me in that it may mean NK has progressed much farther than we have believed, or it may mean nothing, I am sure the U2s were up in hours after the test as well as the other sampling, The only blasts that I was ever aware of that created rock fusing heat were either nuclear or thermonuclear, not the atomic blast that was expected .