I, too, find it difficult to believe that any body parts at all survived burning up in the apparent explosion, or in the re-entry through the atmosphere. The metal parts that have been recovered are so charred and disfigured that the odds of what is being reported about recovery of human body parts is inconceivable to me.
I of course didnt know any of the astronauts personally, and forgive me if you think this insensitive, but, as President Bush voiced today, I would like to think that they are all now safely home. And, were I a mother, or a sister, or a wife, of one of them, whether or not I had a recovered a body part to bury would be of no significance. My loved one died in the tragic explosion. He will continue to live on in the memories of those who knew and loved him. No physical remains are of any significance.