Well apparently the chinese have precipitated the blackout. I don't how much of this is just FUD but it's an interesting read. Did China's Hackers Shut Off the Lights? | Danger Room from Wired.com.
The Chinese are a force in counter intelligence, ok I get that. The web is used in so many ways, and to read that states are using it to perform attacks on other states, and I'm sure it's not just one way by the way, ie just from China to US, but also the other way - is both exciting and scary to me. Exciting because it reads like a sci-fi book and scary because just like Ender's realizes at one point - it's all real, it's not a game.