How Does North Korea Stay So Secretive?

Aired: 12/20/2011 | 0:06:17 | Clip
The fact that U.S. intelligence apparently didn't notice the death of Kim Jong-il for 48 hours is a demonstration of how impenetrable North Korea continues to be. Margaret Warner discusses the mysterious nation with former senior CIA and State Department intelligence analyst Robert Carlin, now at Stanford University.

SHARE