the highly unusual an highly unlikely story we are covering f. you just saw that graphic, if you have ever seen the macy's thanksgiving day pa rid and a blow-up balloon character loses an arm slowly over the course of the parade, this seems to be what is happening. this is an airship. it's called an aerostat for the purposes of conversation we have been calling it a blimp. it is manufactured by raytheon. until this morning, it called its home the aberdeen proving grounds in maryland where it was tethered to a stationary pole. we think about 6,000 feet up, they can go about as high as 10,000 feet. something caused it to come loose. it is unmanned. not prospelled by any on-board means. and as you can see there, it is drifting. it's been drifting as high as 16,000 feet.