An EMP blast is something technically possible, but it’s speculation as to whether it actually happens in the future. But, it’s definitely a danger.
The Soviet Union could have done that to us, too, but they didn’t. Perhaps the M.A.D. doctrine kept them from doing it. I would imagine that even if China did that, they wouldn’t have anything left of their country, because we would have ample nuclear weaponry to turn their country to ashes. I suppose the M.A.D. doctrine is good for that ... :-) ...
I hear what you are saying, but I think it will happen from Iran. From a boat off the Atlantic, or from Cuba. This seems to me, why Odinga is letting them do what they want. That is why, from a certain biblical prophecy perspective, it makes sense that Iran, somehow, is one of the big players along with Russia.