[Mark Felton]

'I'm confident we have something totally unexpected up our sleve."

The top 200 men of the NK leadership may someday simultaneously develop "food poisoning", while at a planning meeting, and die.

The top 200 NK scientists may be overcome by noxious fumes and lose 50% of their brain cells.

[piasa]

Or, something else might happen to their scientists...

North Korea - US denies hand in defection of Elite [Nuclear Scientists]

North Korea Admits Loss of Nuke Expert

And other things happen:

Explosion Hit North Korea Missile Test Site