The enemy of my enemy is my friend -- at least, it is for the US. Sources for both the Associated Press and the New York Times claim that American officials have asked China to implement a block that would "cripple" North Korea's ability to launch cyberattacks like the one that hobbled Sony Pictures. Unfortunately, this request may be more than a little optimistic. China reportedly agrees that the attacks aren't cool, but it hasn't promised help. It doesn't exactly have much of an incentive to lend a hand when it's frequently engaged in cyberwarfare with the US.