Because as you and I know, this action of exporting plutonium from the DPRK to other nations (particularly to the Islamo fascist Middle East) in fact crosses the Bush Administration's so called RED LINE against North Korea in 2002-2003, when appeasement of North Korea was not US policy.
If they were to go over this "Red Line", it could well mean War with the United States.
4 to 5 years later, now, here in 2007, NOTHING WILL BE DONE. We kept shifting the Red Line and Kim Jong il knows it.
Also, this kind of FR thread on North Korea, of utmost importance, would stretch into the 300s and 400s with posted replies, were this situation were to be found out during a CLINTON ADMINISTRATION and everyone hushed it up as much as they have done here in this case, all in favor of Chamberlainian Peace Talks and a Peace Treaty.
A lot of people are really asleep at the switch on this one.
IMO, we should declare an ultimatum to DPRK, something like: Exporting nuclear materials to terror sponsor states (Syria, Iran, etc.) will constitute an act of war against the United States of America, warranting a full retaliatory response.