Day Four of the Swedish naval search for suspected "foreign underwater activity" in the Stockholm archipelago. The armed forces are tight-lipped about the operation but many are pointing the finger at Russia. Hear what one expert has to say about the hunt. Putting it into context we take a look back through time at an infamous event in the 1980s that saw a Russian sub run aground off of southern Sweden and learn how the incident affected this Nordic nation. And Sweden is making electricity by getting rid of garbage. But not everyone thinks the situation is a win-win. Producer: Dave Russell. Presenter: Frank Radosevich. Song: "Flash in the night" by Secret Service.