U.S.: No radiation in initial N. Korea air sample! There's a lot of doubt about wether or not NK actually conducted a Nuke test. Because data collected indicates it was a small blast....about 200,000 pounds of TNT in comparison. It just dawned on me....The reason why the blast seemed so small is that they have not been working on a BIG NUKE...so to speak. They have been focusing entirely on weaponizing it to fit on the end of a missle. Hence the reason for the missle test. Hmmmmmmmm