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An unmanned Army surveillance blimp floats through the air while dragging a tether line just south of Millville, Pa., Wednesday, Oct. 28, 2015. (Jimmy May/Bloomsburg Press Enterprise via AP)
An unmanned Army surveillance blimp floats through the air while dragging a tether line just south of Millville, Pa., Wednesday, Oct. 28, 2015. (Jimmy May/Bloomsburg Press Enterprise via AP)

Blimp on the loose: What does it do?

WASHINGTON — The U.S. military has begun efforts to remove an Army radar blimp from the woods in northeast Pennsylvania, where the high-tech radar system crashed after it broke free from its mooring at Aberdeen Proving Grounds in Maryland. During its slow meander 150 miles north Wednesday, the helium-filled blimp's long cable tether brought down power ...