China's Cyber-war

China's cyber-war against the West is discussed, very well, in The Wall Street Journal's "Why China Is Reading Your Email":

Then there's the argument that all this is overblown because no cyber attack has ever killed anyone. Mr. Thomas responds, somewhat impatiently: "If I had access to your bank account, would you worry? If I had access to your home security system, would you worry? If I have access to the pipes coming into your house? Not just your security system but your gas, your electric—and you're the Pentagon?"

It's enough to get you looking at "doomsday prepping."