<A partial list of debris. Included from Columbia's meteoric demise are some pieces of paper with writing on them, which ought to shut up those idiots who keep wondering how a passport could have flown unharmed from the WTC.
Again, the fact that no one on the ground appears to have been injured by this stuff raining from the sky ranks as a miracle.
Debris photo gallery. I'm certain many of these pieces should be instantly identifiable to NASA engineers. I've got a few guesses of my own:
This one, identified in the caption as part of a shoe, looks too robust to be part of an ordinary shoe. Part of a space suit boot I would say, or one of the orange flight suits worn during launches and landings.
This one looks to be a hatchway, but whether part of the Shuttle airlock or part of the Spacehab assembly, I don't know.
Some debris links from the Houston Chronicle