Four years after the temporary closure of the German embassy in the North Korean capital Pyongyang, its reopening remains uncertain. “Whether, when and in what size the embassy will be reopened is a political decision, and that will be made in Berlin,” the German ambassador to South Korea, Georg Schmidt, said in Seoul on Friday. Regardless of the closure, the German government had been in contact with North Korea. “I believe that in politically difficult times it is important to keep the channels of communication open,” said the diplomat, alluding to the increasing tensions on the Korean penin…