I’ve previously reported on Kim Jong Un’s efforts to crack down on illegal cell phones, memory sticks, DVDs, and other subversive information flows, even as some wishful observers clung to sketchy evidence to argue that Kim Jong Un was a reformer. The good news is that after an initial period in which smuggled DVDs became hard to find, they are making their way back into circulation. “People caught for watching South Korean dramas aren’t being punished that harshly anymore,” a source based in Pyongyang...