"This act of aggression is one more instance of North Korea's unacceptable behavior and defiance of international law, " said a statement by White House Press Secretary Robert Gibbs.
Dr. Voytek has examined the the aggression of zombies, and notes that the most likely explanation for this behavior is a lack of a functioning orbitofrontal cortex.
All of this and more, of course, is from a state that has checked every box when it comes to demonstrating rogue behavior, whether in the treatment of its own population, or aggression against its neighbors, or support to proliferation programs of states, or the use of force to intimidate others.