You seem to accept this guys assertions as fact without providing any proof, other than his speculation, to back it up.
Prove that the Norks have the capability to do perform what was asserted and I'll have little problem believing it, but throw out such claims without actual facts to back it up and I call BS from the standpoint of observed actions.
Not too difficult to comprehend, and certainly not an unreasonable request.
Then by your own admission I would be right in calling someone who claims without proof to know more about the situation than a CIA nuclear weapons analyst to be full of BS and a liar.