we are hearing similar questions and concern from mary schiavo when the government will complement these plans to add positive train control after the train crashes we have seen the past several months. peter goelz of the national transportation safety board, thank you. >> thank you. >> we will be back with the breaking news out of south carolina. but some people still like cable. just like some people like pre-shaken sodas. having their seat kicked on an airplane. being rammed by a shopping cart. sitting in gum. and walking into a glass door. but for everyone else, there's directv. for #1 rated customer satisfaction over cable, switch to directv and get a $200 reward card. call 1.800.directv (sighs) i hate missing out missing out after hours. not anymore, td ameritrade lets you trade select securities 24 hours a day, five days a week. that's amazing. it's a pretty big deal. so i can trade all night long? ♪ ♪ all night long... is that lionel richie? let's reopen the market. mr. richie, would you ring the 24/5 bell? sure can, jim. ♪ trade 24/5, only with td ameritrade. when heartburn hits

i want to bring in mary schiavo.iation analyst and the former inspector general of the department of transportation. good to see you. so the flight data recorder has been found. what might it tell investigators? >> probably the most important piece of this puzzle, it will tell investigators all sorts of things about the flight operation, the engines, the control settings. what was being done to the plane, visvis-a-vis, you know, flaps, position of the engine, thrust, et cetera. really just a full picture of what's going on with the mechanical part of the plane. and since the plane was only seven years old, there's a chance that we'll have what's called an advanced parameter black box, meaning the black box will have even more leads from the engine and the plane. and it will be able to tell exactly what was going on with all parts of the plane. very important they've got it. >> so that the debris field was scattered over a very large area. does that indicate to you explosion, a breakup upon impact, what? >> well, you

with us now, mary schiavo, she's a former inspector general with the department of transportation. kaylee hartung is also with us on the ground there. so mary, to you first, listening to mr. sumwalt, he said there's a number of things they'll look into, company procedure, from the mechanical condition of each of the trains to the medical factors of the people involved, we know there were two who died in this, the conductor and an engineer, the work/rest periods of the employees involved, even looking at all the cell records and examining all of the recordings. this is still very early. this happened overnight. are there any things that can be answered thus far in your view? >> yeah, a couple really important things that we learned. one is that they already have recovered the forward-facing video cameras, which literally is like having an eye at the front of the train. and that's going to be very important to show them what happened. but the sec thing that we learned is, of course, that the automated signaling was down. and that they were doing a lot of this by hand, they were commun