I've watched many North Korea videos and I'm sure it's a paper tiger with airplanes, warships, subs, tanks and artillery pieces from the 1950's. Aside from distant figures, I've yet to see anyone from outside the military and police doing any work. Their showpiece capital has less traffic than 1930s London. Even during strictly controlled guided tours there's regular power cuts. One I viewed recently featured an immaculate hospital but the doctor's refused to allow the cameras to capture any patients never mind the reporter speak to any.