"In the last (third) nuclear test, they could not finish the task of miniaturization, but if they have a chance for more nuclear tests, maybe one more, they would be able to have small and more reliable device for their missile,"
In its first nuclear test in 2006, "(the North) began with a small device with a small amount of explosives, and it was not so successful," the Chinese expert said.
"Then they had to add more chemical explosives because the yield was not good enough. Eventually they got full yield (in the third test), but the device is not small enough," according to Li.
Li also noted that the North may have tested a plutonium-based nuclear weapon, instead of uranium-based one, because it is more difficult to miniaturize bombs using uranium. (end) mk.gta
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