More fun with math...
They don't really give enough information to be exact, but based on what I'm seeing in this transcript, it seems pretty obvious they are over stating the data and storage capabilties...
NOVA: Rise of the Drones wrote:
YIANNIS ANTONIADES: From even 17,500 feet, the white thing that you see flying around is a bird.
NARRATOR: ARGUS streams live to the ground and also stores everything, a million terabytes of video a day, which is the equivalent of 5,000 hours of high definition footage.
YIANNIS ANTONIADES: So you can go back and say, "I would like to see what happened at this particular location three days, two hours, four minutes ago." And it would actually show you exactly what happened as if you were watching it live.
NARRATOR: To create the world's highest definition camera, Antoniades needed to design a new imaging chip, but DARPA, the project's funder, wanted to move fast and keep costs down, so
YIANNIS ANTONIADES: Inside this cell phone we find a tiny little camera. So, if you were to take off the majority of it, you'd be left with an imaging chip. If you were to take 368 of these and make a big mosaic out of them and start shooting images, now you have ARGUS.
NARRATOR: Unlike the Predator camera that limits field of view, ARGUS melds together video from each of its 368 chips, to create a 1.8-billion-pixel video stream. This makes it possible to zoom in and still see tremendous detail.
Whether ARGUS has been deployed in the field is classified.
YIANNIS ANTONIADES: I'm not at liberty to discuss plans with the government, but if we had our choice, we would like ARGUS to be over the same area 24 hours a day, 7 days a week. That's not very easily achievable with manned platforms. This is where U.A.V.s come in, and they're absolutely the perfect platform.
NARRATOR: ARGUS may be mounted on an armed U.A.V. like the Predator, a long-range platform like the giant Global Hawk, or a development craft, called the Solar Eagle that may someday stay aloft for years at a time.
MISSY CUMMINGS: The U.S. Air Force, right now, has the ability to archive every single video that comes off of every single U.A.V. We're moving to an increasingly electronic society, where our movements are going to be tracked.