A runaway blimp creates confusion and causes some problems in Pennsylvania. A blimp is also known as a dirigible. That's just a lighter than air aircraft that's powered and steerable, as opposed to free floating, like a balloon.
One of the U.S.' two surveillance blimps escaped its tethers in Maryland and ended up drifting 150 miles away, landing in a rural area in Pennsylvania. The blimp was part of a high-tech defense surveillance system. Two f-16 jets from the New Jersey National Guard scrambled to track the blimp after it came loose, making sure it didn't collide with other aircraft.
The cable dragging from the blimp caused several power outages. A spokesman from NORAD, which stands for the North American Aerospace Defense Command, says it’s still unclear how the dirigible got loose.
Instructional Links
Website Article: Airships.net: Airships, Dirigibles, Zeppelins, & Blimps: What's the Difference
http://www.airships.net/dirigible
Website: North American Aerospace Defense Command, About NORAD