That high level official that was caught, I understand NK is a cult, but was he really working at the time for the NK? Or did he see the light and defect? How was he in contact with the NK?
How do they infiltrate? If they don't come back to they then kill all the family left behind?
He was a high-ranking guy in the Korean National Police. How much he was actively passing info I don't know. It was said that he had come over very early on, like some kind of Manchurian candidate-style person. I'm not sure the exacting details of how he was operating day to day in that regard.
Infiltration for the SF isn't necessarily right across the DMZ, as it's pretty heavily patrolled and mined, although thats possible. Generally, they'll come via the ocean and via miniature submarines, one of which accidently beached in the mid-90s on South shores, and the a large manhunt of special types happened for a number of weeks. Here's some detail on that:
http://www.homeland1.com/homeland-s...-korean-adventures-in-unconventional-warfare/
https://en.wikipedia.org/wiki/Battle_of_Yeosu
How far away is Seoul from the NK border?
The northern outskirts of Seoul is darn near within spitting distance of the NK border, which is why that city is so susceptible to attack and artillery barrage.
The North and South have constant skirmishes, especially between their Navies, with both sides having lost ships and personnel in these battles. The so-called "crab wars" is a very common one off the western coast, when it comes to fishing grounds located amongst disputed islands located next to the DMZ
http://www.atimes.com/atimes/Korea/EF14Dg03.html
Alot of this is very intriguing if you really look into it, as its easily missed in the news/press.
