[rface]

It wouldn't take much to sabatage a shutle. Just one little tweak on a system that is used durring re-entry....

Then again - it could also have been a malfunction

[Valin]

I'm thinking some tiles fell off.
A guy on cbs was just saying that on an earlier flight some debrie(sp) from the external fuel tanks hit the leading edges of the left wing. something like this could cause severe stress on that wing.