North Korean Cyberwarfare?

I was listening to NPR last night when they started discussing whether North Korea was responsible for these recent cyberattacks.  One commentator they interviewed described the DPRK as being probably in the bottom 5-10% of countries in terms of hacking skills, so if we're having trouble with them we're pretty screwed when it comes to dealing with more sophisticated cyber foes.

I'm imagining Kim Jong Il sitting around with his generals explaining, "The Internet is not a big truck!  It's a series of tubes!"