Norway's widely regarded as one of the world's most progressive societies, yet it's at the centre of an international storm over its child protection policies. Campaigners accuse its social workers of removing children - some from immigrant backgrounds - from their parents without justification, and permanently erasing family bonds. Tim Whewell meets parents who say they've lost their children because of misunderstood remarks or "insufficient eye contact" - and Norwegian professionals who call the system monstrous and dysfunctional. Is a service designed to put children first now out of control?