Nothing new. North Korea starts some crap to get attention on a regular basis. It's how the little tin pot dictator gets money. They start an "incident", and in order to placate them, the rest of the world offers them some beads and trinkets to behave. They'll get some food and/or some money in order to behave. Maybe even some sort of trade concessions or something of that nature. Things calm back down, North Korea behaves for a while, then they need food, money, or something else, so they act up again. Lather, rinse, repeat. Another perfect example of why appeasement and placating are never good foreign policies. Other than "scale", it's no different than giving your 4 year old candy in order to get them to behave when you take them to the store.