UK media is speculating that the Royal Navy may be facing a significant problem after its only polar icebreaker, HMS Protector, appears to have suffered a significant failure. Reports are indicating that the now 25-year-old survey and scientific vessel used as a demonstration of sovereignty in the polar regions has experienced a potentially serious mechanical failure without plans for a replacement. The publication Naval Lookout and local newspapers are reporting that HMS Protector was towed into her homeport at Davenport...