full recovery. >> the ntsb says the initial data shows the train was racing into the curve at 106 miles per hour before the derailment. that is more than twice the 50 miles an hour posted limit for that curve. the engineer has been identified as 32-year-old brandon bostian. his attorney says bostian has absolutely no recollection of the crash. joining us to talk about challenges facing the investigation two people who know rely very well former ntsb safety investigator and cnn analyst mary schiavo. he told us they are going to do a brake test today, also said more data from the black box. the break test. they are obviously looking at other possibilities for why this train could have been going 106 miles per hour into this curve. other possibilities other than