In a widely publicized leak, an unnamed official claims that atmospheric probes after the test did not show any traces of radiation.
So of course, we should assume that the communists brought 100-200 train cars of TNT underground and detonated them all at once. What nonsense.
Other downplay the test as merely a 4kt rather than, as we estimate, 10-20kt. The registered 4.7 earthquake magnitude in relatively porous rocks with plenty of natural cavities cannot indicate anything less than a 10kt blast.
