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An unmanned Army surveillance blimp floats through the air while dragging a tether line south of Millville, Pa., Wednesday, Oct. 28, 2015. The bulbous, 240-foot helium-filled blimp came down near Muncy, a small town about 80 miles north of Harrisburg. The North American Aerospace Defense Command in Colorado said the blimp detached from its station at the military's Aberdeen Proving Ground in Maryland.  (Jimmy May/Bloomsburg Press Enterprise via AP)
An unmanned Army surveillance blimp floats through the air while dragging a tether line south of Millville, Pa., Wednesday, Oct. 28, 2015. The bulbous, 240-foot helium-filled blimp came down near Muncy, a small town about 80 miles north of Harrisburg. The North American Aerospace Defense Command in Colorado said the blimp detached from its station at the military's Aberdeen Proving Ground in Maryland.  (Jimmy May/Bloomsburg Press Enterprise via AP)

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    Fighter jets following blimp were armed

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Fighter jets following blimp were armed

CNN's Barbara Starr reports the runaway Aerostat was chased by F-16 fighter jets but that they did not fire on the rogue blimp.

Fighter jets following blimp were armed

CNN's Barbara Starr reports the runaway Aerostat was chased by F-16 fighter jets but that they did not fire on the rogue blimp.