CHARLIE As you can see, the recovered images are highly degraded, a lot of digital information has been lost. But we're applying a technique called ëScaled Gradient Projection.' Think of it like a partially filled in crossword puzzle -- AUDIENCE VISION A page of torn newspaper with a partially filled in crossword puzzle flies across the screen. No clues are visible, only the grid and a few letters. CHARLIE (cont'd) Even if you don't have the clues, there are some things you can surmise, knowing what you do about spelling and phrases. CLOSE-UP on the partially filled in puzzle. CHARLIE (cont'd) Certain vowels will go together, certain consonants will not. You can assume, for example, Z and R will not be next to each other -- at least not in English. Letters that make sense next to each other are tried. CHARLIE (cont'd) So we eliminate unlikely possibilities and make educated conjectures about what would be in adjacent squares. The letters fill in to make the phrase "Kilroy Was Here."