blimp became untethered from aberdeen, north of washington, d.c., and it is flying uncontrolled, and think of it as a large helium filled balloon structure floating uncontrolled over pennsylvania. it is being tracked by two air force f-1s that were scrambleded out of their air station in atlantic city, new jersey. they are tracking it. following it. the faa and other federal agencies are working on it right now trying to ensure air traffic safety in the path of to a aerostat, because it is uncontrolled in the uncontrolled flight, and making sure that no aircraft get in its way. and trying to decide what to do about it. what is this system? it is essentially helium-filled with extensive radar equipment and something they are using and testing at aberdeen. it is a system that is designed