COLUMNS
The Secrets of Countersurveillance
Jun 6, 2007 | 17:25 GMT
![Security agents stand guard while the U.S. president visits an observation post in the Demilitarized Zone in 2019 in Panmunjom, North Korea.](https://worldview.stratfor.com/sites/default/files/styles/2x1_full/public/GettyImages-1153059959.jpg?itok=W60u3TbF)
Security agents stand guard while the U.S. president visits an observation post in the Demilitarized Zone in 2019 in Panmunjom, North Korea.
(BRENDAN SMIALOWSKI/AFP/Getty Images)
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