It was the morning after the storm in Pyongyang, and even quite small children, dressed ready for school, assembled on street corners armed with buckets, mops, brooms – all doing their bit to keep the city clean. They were engaged in a civic duty that will be theirs for the rest of their lives. Elsewhere, on the Taedong River that runs through the centre of the city, a flotilla of small boats was gathering weeds that had accumulated, washed down by the heavy rain of yesterday.