Longer than two football fields. Wider than an eight-lane highway. And completely, deliberately visible to every listening post in the North Atlantic.Aboard the American submarine, a sonar operator’s hands tremble as he adjusts his headset. There it is again- but the contact moving beneath the Barents Sea should be impossibly big for a submarine.Whatever it is, stealth is the least of its concerns. Because when your enemy discovers you’re carrying enough firepower to obliterate 200 American cities from a single launch, hiding becomes irrelevant.