Many consider the sinking of the South Korean Navy ship Cheonan on March 26, 2010 as the start of the latest bout of North-South friction. The NewsHour visited the ship in drydock 10 months later.

Jan 17

PANMUNJOM, Korean border | Although it stands for the "demilitarized zone," the DMZ is the most militarized border in the world, U.S. Army Col. Kurt Taylor told us during our recent tour of the buffer zone separating North and South…