Marc Knapper, Deputy Chief of Mission tours the inside of the NASA DC-8 that is part of the Korea United States-Air Quality (KORUS-AQ) Experiment at Osan Air Base. (NASA Photo)

Marc Knapper, Deputy Chief of Mission tours the inside of the NASA DC-8 that is part of the Korea United States-Air Quality (KORUS-AQ) Experiment at Osan Air Base. (NASA Photo)
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