"The Chinese dragon is flexing its muscles. As its military begins to prey on neighbors in the South China Sea, attacking fishing vessels and scheming to seize natural resources, the US goes on high alert. But a far more ominous danger lurks closer to home: a Chinese sleeper cell has planted a nuclear weapon in the harbor at Norfolk, Virginia, the biggest naval base on the planet. The target: a secret rendezvous of the Atlantic Fleet aircraft carriers...