but it doesn't mean you can't get back on track. great. yeah, great. i'd like to go back to bermuda. i hear it's nice. yeah, i'd like to see it. no judgment. just guidance. td ameritrade. new details breaking this hour on a deadly amtrak crash in south carolina. investigators are trying to figure out if the signal systems along the railway were working properly at the time of the crash. we know an amtrak train collided with a freight train overnight, killing the engineer and conductor. over 100 people were sent to the hospital. caylee joins me live on the cerebral palsy now. caylee, this seems to be human error or mechanical error? >> reporter: we just got off a call with amtrak's ceo christian anderson. he explained that this stretch of track where this crash occurred, it's owned, operated and maintained by the csx