Online Discussion for Spring Break

I didn't find anything interesting from the Economist that I wanted to share on the blog, so I'm sharing this article about the latest threats emanating from the Democratic People's Republic of (North) Korea. From CNN:

A day after the isolated regime in Pyongyang had threatened a possible "preemptive nuclear attack" -- something analysts say they think it is unlikely and currently unable to do -- its official news agency reeled off a number of agreements with South Korea that it said would no longer apply.

One of those agreements is the ceasefire that has kept the Korean War on pause since 1953 (the two states are still technically at war).

Comedienne Margaret Cho plays Kim Jong Il on NBC's 30 Rock

Clearly, Kim Jong Un is writing checks he can't cash--North Korea is far weaker than South Korea, not to mention China and the United States--but that doesn't mean he can't do a whole lot of damage.

Does that mean that Kim is being irrational? What cognitive shortcuts and psychological crutches might be leading Kim to make these threats? Might there be a benefit to such irrationality? Read the article and comment for participation points.