40 hours after Columbia had launched is when the NASA techs claim to have become aware of the damage
This is incorrect. At this afternoon's press conference, we learned that after launch, tests were done using MULTIPLE parameter's, including weight/distance/impact angles, and the damage was thought to be inconsequential using the most extreme parameters. It also was stated at the news conference today, that the 'tile' identified at launch, as hitting the left wing is not even confirmed. Not even the 'color' of the object which flew off.
I've read three different versions on FR threads as to what went on during the press conference. Not doubting YOU but I'm a bit skeptical as to what was said / interpreted as I was at work and didn't see for myself. Also once again I'm not a rocket scientist nor do I play one on TV so I'm making educated guesses. Still its hard to beleive that something logical and rational could not have been put in place for the Columbia 7.