They mean it will CIRCLE our planet.
Not if we blow it into tiny smithereens that spread out in a disk like cloud. Sounds like NASA (which is only an extra letter removed from the NSA - did they really think they could fool us that easily?) is planning on testing some new toys and let their dastardly plans slip to the press . . . .
Sorry - I've been reading Clarke's testimony today and got stuck in freakish conspiracy mode.