Claire Harbage | WABE 90.1 FM

Claire Harbage

The quiet of the late-winter morning is interrupted by a staccato of gunshots.

"Military drills," shrugs Kim Seung-ho, 58, the director of the DMZ Ecology Research Institute, a nonprofit organization that does research on the wildlife in the Demilitarized Zone, or DMZ, which is the border area between North and South Korea. A thick blanket of fog seeps over the forested hills on this late-winter morning as Kim stands, searching the horizon for birds, on the bank of the Imjin River just north of Paju, South Korea.

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