North Korea: Pushing the Northern Limit Line?

Chinese crab fishing boats are reportedly leaving the lucrative fishing grounds near the Northern Limit Line (NLL), the disputed western maritime extension of the Demilitarized Zone that divides the two Koreas. Tensions in the area have risen since the North Korean nuclear test and Pyongyang's warnings that it could no longer ensure the safety of South Korean or other vessels in the area. The NLL, long a source of contention between the two Koreas, is the site of two deadly naval clashes in the past decade, and Pyongyang is suggesting that more may soon follow.