Don't confuse this with Panorama sending John Sweeney to North Korea in the imaginatively titled 'North Korea Uncovered' in which our heroic reporter destroys communism by dicking about. "This is an electricity factory" says Sweeney "But none of the lights are on." BOOM! Nice journalism, Sweeneyator.
The dangers involved are now on clear display in the escalating crisis in North Korea as the United States seeks to strike a delicate balance between deterring an unknown adversary and reassuring a nervous ally. What's more, the drama plays out in full view of an international audience, some of whom are watching for clues about the utility of nuclear weapons in the 21st Century.
If the North Korea's nuclear capability is a shield, this reflects the regime's paranoia or chronic insecurity, and weapons are being developed as a deterrent. If it is a sword, the nuclear capacity is for aggressive purposes and part of an offensive war stratagem, perhaps reuniting the Korean peninsula.