Detailed text transcripts for TV channel - MSNBC - 20130708:16:16:00
>> seven seconds before impact the crew discussed they were not at their target air speed of 137 knots. they were well below 137. it wasn't just give or take a few knots. >> the ntsb says it could take months to come up with a definitive cause with no evidence of mechanical error. all signs are currently pointing to pilot error. joining me now from san francisco is nbc news correspondent tom costello. tom, what are we learning at this point about the plane's final moments and the latest on the injury totals? >> reporter: well, the latest on the investigation is that -- by the way, over my shou...