make sure that the dialogue and the communication involves the entire community and people of all faith. so we want to ensure that we sort of work our way through this difficult incident as a boston community with everybody communicating and working together. the last time that we suffered one of those where the officer and anglo west event and the police had many of the same people in the room that have the same kind of conversation and one of the requests that we made when the video was clear when it was fairly obvious and watching the video once what happened that they would do it repeatedly. they would do it the next time when it happened. the next time there's video and we did see it. it makes it clear that the gentlemen was not shot in the back. that he was shot in the front, but the camera is at a distance so you can not see it as clearly

and yet they're still working for the same level of transparency. what we're working to establish as a community as we do with the police community and how we deal with the incidents is that when it happens that very quickly the next day immediately we're together and talking and finding out what happened and communicating with the public and with each other. >> what was the question? >> can you lay out the exact sequence? where does it start? >> well the -- i am going to differ to the police on the exact sequence of the events. i can talk about what i saw and my reaction to it. i will let them -- >> did you see the police approach him and pull out a knife. >> if you will hold up we will get to that.

>> okay. >> commission er the question was raised by one of the media and what were the sequence of events on the table? >> i can talk and then we can finish. with me is special agent in charge of boston and vince leacy and i want to thank the clergy and everyone that came to today's meeting. today's meeting was all about pulling the community together. i think when we had an officer involved shooting over about a month ago, i made it clear that the protocol that we followed would be followed here. we did that. we had muslim community. we had the clergey and all of the

denominations and elected officials and naacp and everybody in that room. again the whole idea was to be as transparent as possible. now, because of the nature of the information and some of it being classifyied, we could not get into great dell tailtail. this is an investigation and it required 24/7 surveillance of the individual in question. at about 7:18 our officers went out there to only question the individual because the level of our concern rose to the level that we needed to question him. i think that we never anticipated what his reaction would be and that he would pull out a military knife and approach the officers. what we have seen in the video

was the officers walking up to the suspect in question. no weapons being drawn. just to speak to the individual. at that point, the video clearly shows these four or five officers backtracking away from the suspect as he is coming at them. now, the weapons clearly displayed but by the officers actions all were back stepping as this individual was coming towards them. it's at some point when the suspects gets close enough to cause imminent harm that the officer discharged a weapon. the individual was hit three times and passed aware. the reason that we spoke today because there was a lot of miss information out there about us and the individual at the bus

stop being shot in the back. it was just to calm down the emotions, and gain to explain to the community this is what happened and the fbi and the da is going to -- they're both going to do the investigation on the use of force, putbut at too th time was to give them what information and we have the video and made it clear. we're going release the video and that disspells the rumors and the tensions that might build. i think that we laid it out for them and i hope that they appreciate that. that's going to be our policy going forward. >> did he threaten to be head officers? >> there's some information that's classified and that's an area we can not go. >> why were four or five officers need ed to question him? >> well all i can say is again

this guy required 24/7 surveillance. we thought the threat was severe enough that we had to approach him. we did not expect what happened but hopefully it will all come out later and it's a better understanding of the level of threat. i cannot go into anything more than you know it was a very serious threat and that's why we did not take it lightly. >> is this video not -- >> i am wondering what surveil and if there are any reactions or excepts related to the boston marathon bombing that they have increased the concern. sn. >> i cannot comment on that. >> he made a statement on the community coming together. this is not the first time coming together. i want to commend the commission er and the command staff and the district attorney and the

special agent by bringing the clergy and the community activists and civil rights organizations together. it acceptedsends a strong message that when we sit down at the table and we talk about these issues and we see whatever the evidence is available, then we can be able to relay out that this is not something that happens everyday, so i want to commend evans for taking that kind of a leadership role that really speaks to where the boston city is as it relates to the incidents. >> i think that we want to hear from you and your impressions and does it jive that the officers were backing up and that the suspect is going forward in apparent aggressive manner. >> based on the video that we saw, i would 150 percent collaborate with the commissioner and what was just stated. there was an approach to

approach the suspect to talk with him. the officers were backing up what i saw, and then there were things that went down as you already know and that's an accurate statement. the only reason why we can not go beyond that is because the district attorney has to do his job as an ongoing investigation to determine whether or not that was a justifiable shoot. that's just where we are. >> i do not think that it's appropriate. it's partover the investigation. i think that the district attorney has to do his job, and his team and they will tell us who, what when how. that's going to take time to go through the evidence and i would believe and i am a files kind of guy. they have to enhance the video so that they can actually see all of the things that need to be transpire for him and the

report. >> is this video far less clear as to what happened and is justified? >> i think that the video is clear, but it's distant. the fact is that you can not recognize who is in the video. you just see the silhouettes of individuals doing what they're doing. we know who the officers are. we know who the suspect is et cetera. that needs to be determined by the district attorneys role if it was justifiable. >> could you see the knife in the video and seeing that he was holding a military style knife in the video? >> i am not going answer that. >> you looked at that video. >> i am going to let the investigation tell you where it was. >> you could see that he was holding something? >> that's the third time that

you asked me the question. >> now you know how we feel. >> what have you learned? >> again, i will have to turn it over. the investigation is an fbi investigation. i don't want to comment, and i don't know if he can at this moment. >> we can not comment on the pending investigations. i cannot say whether anything was or was not related to what happened here. >> is there another search at this time and pursuit. >> we're not going comment on that. >> folks i just -- >> a couple of more questions. >> what i want to talk about is something that the police commission er brought up. this is unusual and this is a step forward than what you have seen from law enforcement in the past. the last police involved shooting we said to put the video out there. two community lead ers and let

them make the judgment on er and let them make the judgment on it. we were not going release it and that was going to take many months. we decided to take this step if you will. you do not see this around the country. we think that it's important to let the community leader look at it. i am sure that you're going question everybody in the room to see what they saw. as williams just said the most important thing to do now is let us do the work. i am not going stop you from yours, and you want stop with the questions. it's important that we get to the bottom of what happened and we pledge that we will do that. give us the opportunity. thank you. >> commissioner, knowing what you did in the events yesterday, were you issuing any sort of warnings to anyone about

protecting themselves? >> over the weeks we were getting information that military and law enforcement lives were at threat. they disseminated that and over the last couple of weeks we put out several notices of the brick report and military bases being attacked. this has been a notice that we put out over the last month about us all being on the guard because of the intelligence that we had and what has happened not only across our country, but across the nation where officers have been attacked military have been attacked. we put that information out over the last couple of months. >> does anyone know where boston is attracted to terrorist? >> i don't think like boston is like any other city.

>> it's not -- >> i am from the muslim community and we want to express the gratitude to the officials by opening up this venue so we can see what happened. the film and the video is inconclusive. i don't think that he was shot in the back but verof that. it was like one 20th of the overall frame and very far away. we can not be clear as to what transpired. we want to express our gratitude and the second thing is to be quiet until we see how it unfolds, so we can be clear on what they're able to share with us. they said that they wanted to be transparent. we have gotten good feedback, and we are happy for this reason as well. the greater community of people and muslim leader and civic

leader and chris commontian leader are involved. how important is it for you to be here so that we know what happened? we do see a vague video that's not clear as to what transpired. it was not at a bus stop. he was not shot in the back. there's no detail enough clear on the video to tell us exactly what happened. however, he was approaching them. they did back up by the death, he was fired upon. our community and our muslim's throughout boston are determined in opening up the hearts and minds to find out what transpire transpired. there are a lot of questions, and we hope that they're answer in the future. >> did you see anything that troubled you? you could not find the answers, but was there anything. >> it's inconclusive.

she is telling me what to say. inconclusive. i cannot make out what transpired. it's not for the muse limblim community. it could have gone different ways. faarauqq spelling of my last name. >> would she like to speak? >> she is going to. >> i have no comment. >> we agree on the same thing. >> we are giving the investigators time to dig into it more deeply and clarify what transpired. >> we're not satisfied until it's fully vetted and we find out what is happened. they're not satisfied yet. are you? >> until the information comes out. there's a lot of classified information, when it's released people have a better sense of the level of threat and i think that's what is missing from the

video here. i think what the video clearly shows is you know the weapons are not clearly visible, but you can see officers approaching the suspect here with no weapons drawn. then all of a sudden you see five fbi agents and boston backing on the feet with the hands up like this and from the witnesses accounts and from officers accounts giving commands to drop the weapon. drop the weapon and then we see the shot. it's clear to see five officers retreating and would not unless there's a threat. you see them go a good 15 yards with a threat coming at them. we can all agree. the weaponry is not clear, but with five officers coming at them, there was no doubt in the

video. >> was that hampl erring on what you saw in the video. sn >> there's a few rain drops but this is an ongoing investigation. the fbi and the da's office is going continue with this investigation and as we get more information, we will get that out to you. >> good. >> yes. the issue now is about the living. the family is pain and suffering. whether or however this pans out, a mother has lost her child. her youngest. this is my concern for today. about the on going investigation, we have people involved and will see how it turns out. >> that's the final comment. thank you very much. nope. >> all right. so there you have it. the news conference from boston and the boston police commission er william evans making it clear

that he wanted to bring in the religious members to show them this video from a far and show them that this individual 26 years old was not shot in the back. he was not just an innocent bystander. they say that the police were actually backing up and he was approaching them with the military style knife. let's get some analysis on what we just heard. the national corespondent is joining us as law enforcement analyst form er fbi. deborah, let's talk about the individual video and approximate police and the fbi and as well as the district attorney. they were showing what was going on. give us your reaction to what we just heard? >> well it was interesting because it was not until the end of the press conference that they mentioned the weaponry. the knife that was recovered at the scene, and it appears that

from the surveillance video and the distance of where it was taken, it's hard to make out whether the suspect was holding a knife. however, he is the agreasegressive one. he sa approaching the law enforcements, and they're seen on the tape backing away. one of the reasons that they did go public with this is because the brother of the man put out a different story and saying that his brother was on a cell phone talking to the father. well the community leader said no. there was no cell phone. he was not talking on the cell phone. also how he was shot. the community leader saying that no that's in the the case. he was shot three times but once in the abdomen, once in the torso and once in the shoulder. they released this just to put

to bed rumors because this investigation could take a couple of weeks if not months. they want to make sure that this was sort of put to bed. that people had the facts at hands. they're still more work to be done but we're learning that this clearly was a plot by all accounts and home grown because they were in the united states. they were two if not three people that were involved in this and all of that is sort of now being looked at and wrapped up. one of the men expected to be in court later today, and we were -- there were rumors and reports that this was a potential beheading, but if fact we're being told by high level law enforcement officials that there's a lot of speculation, and it's not outside of the realm, but the charges that we will see against this man do not talk about beheading, so we're

awaiting for that and that's expected to happen at 3:30. >> yeah that was the question whether there was a plot to use that military style knife to behead off ers. he did not deny it or confirm er. he did not deny it or confirm it. do we know more about this person. >> yeah it appears that they did know each other and there's an on line community as well but once the man was shot then it quickly lead investigators to this man, and there's another individual that's also right now being looked at right now in connection with this alleged plot. >> okay. stand bit. i want to bring tom into this. let's talk a little bit tom

about the knife. he was under surveillance for two years by the u.s. joint terrorism task force, and this military style knife you pointed out and it looks similar to the knife that john had when he was beheading americans. talk a little bit about what you know. >> there's no positive information that he was going to use it and behead somebody. they can not rule it out. isis is putting out to the follow ers and wannabes world wide to go to the police and soldiers in uniform and behead them and they can put it out for recruiting. we saw this last year in london and two soldiers beheaded. we saw in september in australia. then the attack on four new york city police officers shortly after that so that's basically

a standing order if you will from isis to the follow ers and wannabes wannabes. they were concerned on whatever he was going to do. they were not positive but it was not going to be good. they better talk to him now and not in a secure place like his home and other place. thankfully they did that. you would not want to get in a bus or restaurant with this guy next to you with a foot long military knife. they did not go up to him yet. >> the fact that the knife was similar and we can show a picture and similar. not exact, but similar. you don't believe that it was a coincidence? >> well i don't know for sure. when these guys -- when aisis

recruits and you see them standing over someone that's beheaded in a video in a manner and these individuals want to join that and be like them and john and the others you can say that it's a very strong possibility and that's what he was going do. it's not a letter opener or a small er knife that you could kill someone with. that knife can be used and has been used and other cases to be held people. >> tom, i want you to stand by and bring in pete er king. he is a memb er of the homeland security and the intelligence committee as r king. he is a memb er of the homeland security and the intelligence committee as well. >> i agree.

he is a person under 24 hour surveillance. this is a serious matter. there are others involved. the investigation has to play out. this has been to be brought out probably at a peace mill. the fact is that this was a serious matter. the fbi and the boston police did what they had to do. they did the right thing today and ending the rumors of being shot in the back. it shows the nature of the threat and shows that isis is in some ways in a significant way changing the battlefield by being able to recruit people over the internet. they were never successful with that and they were some what successful but isis seems to have protected the art. as tom said we have the attack and it was attempted the sidney australia. this is them being able to appeal and get them to be able to act. >> do you know congressman for

sure that this individual that was killed by the police yesterday brandishing a military style knife or the other individual wright that was just awrestrrested and going to be facing charges. where they both influenced, inspired or directed by isis? do you o know that for sure? >> all i can say is this is constant. seeing what has happened over the last several months at this stage it's a good asumplgs but i cannot say that it was isis un inspired. we have to wait until it fully comes out. >> the fact that this individual was under surveillance 24/7 for two years and then all of a sunday they decide to go out yesterday morning and question him early in the morning, is that -- do you believe the result of what happened outside

of dallas and garland, texas there's a more aggressive nature to deal with the potential threats? >> well it maybe a heightened awareness. they do not move on a person unless they believe that it's becoming operational. i am assuming. garland heightened people's awareness. we know that isis is doing the recruiting and we know that more are getting over the interknelt. again, we have to wait for the details to come out. they have been at a high alert for a long time. especially for the last two years. i don't think that it's necessarily causing them to focus. they have focused and bill evans are very very focused commission ers. >> do you have any idea how many people are under a 24/7 hour

surveillance and the joint terrorism task force? that's a big deal. it uses a lot of manpower to undertake that 24/7 surveillance? >> yeah i could give you a number. yeah 24/7 takes a lot of bodies to carry out that surveillance. i do know throughout the country there are -- the fbi and jttf joint terrorism task tors are monitoring people that are with isis and it's done in ways. it's really an extra dimension to a threat that we face. >> one final question and totally unrelated and it maybe partially related. when are you going announce that you're running for the president of the united states? >> i am looking into it. when i do you're the first to know. >> it's going to be soon right? >> i can't wait too much long er put it that way. >> okay. a lot of people -- i don't know

if you notice a lot of other republicans are announcing that they're running for president. we will see you what do. >> okay. >> thank you. >> thank you. still ahead we have more on the race and the senior adviser and standing by to get the reaction of the rising pole of clinton. we're going talk campaign strategy and what is she doing? all of that and more is coming up. ng the way on tax cuts. we cut the rates on personal income taxes. we enacted the lowest corporate tax rate since 1968. we eliminated the income tax on manufacturers altogether. with startup-ny, qualified businesses that start, expand or relocate to new york state pay no taxes for 10 years. all to grow our economy and create jobs. see how new york can give your business the opportunity to grow at ny.gov/business you total your brand new car. nobody's hurt,but there will still be pain. it comes when your insurance company says they'll only pay three-quarters

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er. let's get to the race of the white house. opinions have gone up and that according to the poll. look at this. 46 percent of americans say that they have a favorable opinion of hillary clinton and 50 percent say that they have unfavorable view and by the way a 14 year high. joel is a senior adviser for the clinton campaign and we talk about those numbers and we want to show the numbers from the poll and you're an expert. only 40 percent says that she cares about people like them. that's down 54 percent from a year or so. only 42 percent are honest and truth worthy. that compares to 57 percent that do not. so what is the reaction to the numbers? we have seen a decline in her numbers since she formally

announced that she is running for president? >> well i think that -- thank you for having me. we have known each other for a while. i take these with a grain of salt. i do not have to remind you or the folks at cnn that the last poll on election day had a dead even race and president obama won by four points in a land slide. we should keep the perspective in all of these. >> let me interrupt here. in the poles there's a margin of error, so they're not that precise. they do show a trend of prospective and at one particular time, right? >> they do. i think that they're not going get hung you up. it's not a term that i share. we have to win the elections and be right. the reality here is that in the poles that you're talking about,

and if you want to talk about the breath of them. secretary clinton is out performing everybody on the democrating i can side. on the republican side there's a lot of frustration with the grid lock and another pole that came out this week had every republican in the pole. i think that on some of these on the last pole that was an outlining one and a favoritable one, that's changing. you're talking to adults. we are on side talk to actual voters. the pole has a sample of 50 percent man and 50 percent woman. it's 53 percent woman and 47 president men in the election years. there are incidences that happen and the sampling that can cause the changes that we're seeing

here. the fundment thing is who are voters going to count on and who can they trust to help them get away inahead and stay ahead. sn when you look at the ray? >> let me interrupt. >> in terms of who cares about people. if you look at who cares about people like me hillary clinton has a six percent advantage, and that's the way that voters view this. through who is going to be working hard er for me and who can i trust to get me and my family ahead. that's is central to their lives. >> so how do you explain the dip that you have seen in the past tucson months. there are a lot of analysts that think that she is hurt and some of the other issues involving the clinton foundation and the fundraising that's going on and the stuff that's out there. have those issues really impacted from the poling that you're doing joel.

have those impacted the race for the white house? >> well i think wolf it's important and again i do not want to debate you over the pole. you want to treat it as the gold standard. that's not what it is. i think what's happened in this period and we know when any person that's been in a role and comes back in as a can datd you anticipate where someone is in the political arena, and they're going to go to their corners, and you're going see the changes. we think that there's a minimal change and looking at and analyzes extensively. that's true in the poles that are out there. the lead over the republicans in example and any test continues to be in the eight to nine point range. there's no change in that and even in our own pole i believe that it shows you ahead of the challenges. >> it does show -- >> our focus is largely --

>> let me interrupt --. it shows with some of them a tight race. >> well we expect it to be a tight race. wolf the races for president are always tight. there are only six in history where a president has won a race with 50 percent or more two times in a row. we have elections that start out close to 5050. we expect it to be close -- you will see her quit a bit coming up because she sout there fighting and earning for every vote. the first step here is winning the nomination and then moving on to a banfield and make the case that we will do from day one of the campaign on june 13th. a strong case against the

republicans as well. >> you helped him get aelected in 2008 and 2012. now you're working and what is the most important thing that she has to do in order to capture the nomination? >> well i think that every election is different and certainly where we were eight years ago is a different moment in time. she has to do what she is dog. she is going out and meeting with viewers and focused on what is central and the big thing remains the economic future and the future of the families. she is going to go over the country and make the case that she will be the fight er that people want in the corner. fighting for them everyday and working like he can to make sure that they're families get ahead.

that they can make a little bit of money and save a little bit more for retirement and that they're giving the reward for the hard work that they're getting in and help the country come back from the work crisis that people have seen in the lifetime. >> okay. stand by joel. we have more to talk about. it's not often that we get to speak to a senior adviser to the hillary clinton campaign. we have more questions on what is going on and to win and then to get herself elected as the first woman president of the united states. more with joel right after this.

we're back with more on the race. joel thanks for joining us once again. who is it that the campaign fears the most on the democratic snide. >> well you know i have been throw this a couple of times. i don't think that you focus on one person when you're in the primary. really want to do the candidate and i think that you have to treat every candidate like a serious opponent and you have to run like a challenger all of the time. i think that's what makes the contests so unique and challenging. i think that the key here is not to focus on one particular interest, but to really go out there in states like iowa and

nevada because that's the first month of the campaign and really vote voters where they live. talk to them about their lives and small events and some hountown halls and really be campaigning. i think if you do that and stay true to that mission, then you're going run the campaign that you want the run and be successful. that's what we plan to do. >> here is a self-serving question as a journalist. we have been complaining and she has not made herself about to answer a full scale interview and major interviews on television and print for that matter. when is she going to start to do that? >> and you know wolf i am a form er journalist and we share that as well. i hear a lot from the colleagues and form er ones in the press. look i think -- i understand

that people in the media want this to be a sprint everyday. the truth is that a presidential campaign is a marathon. we're more than six months out from the cob kas. i think that when we go into a more formal campaign there's times for the interviews and questions and et cetera. >> her husband bill clinton in our new pole is up to 64 percent favorable rating. how are you going to employ him on the campaign? >> well i think that remains to be seen. he is pass nit about his wife and believes strongly in here. i think that we have seen in every election including his own, he is a forceful and skillfulskill skillful advocate not only for the candidate, but for really

bringing the argument home to voters in a way that he uniquely can do. he is kind of i would say that he has that country lawyer flair of taking complex issues and making them simple and real to voters and, you know hopefully will be able to have as much time of his as we can get and need. >> assuming that she is the democratic nominee and she is the front runner by far right now, do you believe that she could be elected president without capturing florida and ohio? >> well i think, you know if you look at the college over the last six years and how the states have fallen out, we obviously on the democratic side feel that we have a strong position in terms of the map. that's been true of the elections. if we look at states that we did well in it includes ohio and florida. think the key to winning and the

democratic winning is that we start out with many more things than 270 votes on the debt cat i can side. i think that the republican party has played to the right wing of the party and it's more out of touch in if last four and six years than it's been in a long time. they're doing nothing on their side of the equation to change that caulk lass. the way that you have to campaign if we get to be the nominee is that you have the real swing state votes, and then you fight in every one of them. for democrats all of the states are winnable. we have a lot of paths to get there. in 2012 we had 43 different combinations to get to votes of the 14 battleground states so we're -- if we get to that point and fortunate enough and do

things right, i think that you will expect to see us campaigning in every state that's on the map. >> i ask the question because if mark rubio or jeb bush you would have problems in both of those states right? >> well i think both of those states have been close. i think florida was the closest state in the last of the battleground states wolf in the 2012 election. i think that you have to play in those states and expect that they're going to be close. ohio and florida as far back as 2004 is challenging. by the way they were there for president bush and the re-election and where his brother left. he left the account and the votes, so i think whatever side that you're on those are two big states that are going to be in play and campaign in them and not take them for granted.

hi think that people on the other side coming from the states should not take them for granted either. >> joel is a senior adviser and major strategist in the hillary campaign. thank you for joining us. >> thank you wolf. >> tell the secretary that we're looking for a full scale interview with her as a approximate philadelphia. with no mechanical explanation, the focus is now on the engineer's cell phone. but there's an unexpected complication. the chairman of the ntsb standing by live to join us on cnn.

our answers are still hard to come by three weeks after an amtrak derailment killed eight people and injured 200 passengers in philadelphia. prelim fair report by the ntsb found no problems with the train's braking system or with the track and the signals at the site of the may 12th accident. so the question remains, what caused the train to go barrelling into a 50-mile-an-hour zone at 106 miles per hour? joining us now is the ntsb chairman christopher hart. thanks for joining us. >> thank you. >> we know the answer to that question? >> no we don't. it'll take us several months to determine. when we do cell phone records, it's a very meticulous thorough examination. >> when you say cell phone records, what are you looking for? >> well oftentimes the cell phone is on the site and we take the cell phone with us because it was on scene and we have the phone itself. >> the phone that was with the engineer? >> yes. this time the engineer had the phone. in fact made a 911 phone call six minutes after the crash. we know he still had it.

that makes our search more difficult because now we need to go beyond just the phone and we need to look at an enormous volume of records. >> was the windshield hit by some sort of object that could have distracted him, inadvertently pushed that throttle forward to go from 50 miles an hour to 100 miles an hour? that's one of the theories that's been out there. >> that's one of the questions we're looking at. we had the fbi come in. they confirmed it was not a weapon projek tile that it was a rock. we know the train left the station with the windshield intact. it happened sometime between leaving the 30th street station and the accident. >> somebody threw a rock at the train? >> we don't know. it was not a weapon projectile. >> we know a couple other trains in the area were also hit. >> right. >> with a rock or a projectile? >> we don't know that. still investigating. >> and human error. that's one of the possibilities, too, is that what you're looking at? >> that's a possibility. we're also looking at was there any malfunction? we know the train was going too fast. that's confirmed. we know the brakes worked

because he applied the emergency brake. that's why we now positive train control could have stopped this accident. >> but there aren't many ways to go from 50 miles an hour to 100 miles an hour. somebody's got to do something to make the train go faster. >> that's a possibility, but it could be a malfunction in the train. >> so there could be a mechanical failure. >> well electronic mechanical. we're still exploring that because the throttle -- we found that the recorder is -- the recording of the throttle position was not as reliable as we hoped. >> the engineer i take it is cooperating. >> very cooperative. >> what is the engineer saying? >> we're not at liberty to discuss the interview with him. we don't want to reveal that until we've completed the process. >> so let's talk about some lessons that you at the ntsb have already learned. i know a lot of people go from washington to philadelphia to new york on that amtrak up to boston. they're always worried as a result of what happened. is this safe? tell us what you've learned so far to reassure the traveling

public out there that they're safe going in one of these trains. >> well the records speak for itself in terms of safety. this is just a textbook example of why in-cab cameras would be so important. then we wouldn't need months to find out whether there was cell phone use, for example. >> cell phone use, in other words somebody was distracted and inadvertently the train is going along, going into a curve going way too fast as a result of someone talking or texting. >> correct. >> that's a possibility of what happened this time? >> that's a possibility. as far as we've gone so far, we know he's not connected to the train wi-fi. that was one thing we looked at. we're looking at whether he was texting, talking, using an app. that's going to take some time. >> because it is pretty shocking when you think about it. right now on these train there's cameras in front to show where the train is going. but there's no camera inside that cab. >> correct. >> and you want that changed. >> we've pushed for that for quite a few years. >> they're changing it slowly but surely. >> amtrak has said they'd put it in because of this.

we're definitely moving in the right direction. >> what about the automatic process to make sure if somebody has a heart attack and dies an engineer that the train is going to be fine and slow down going into a curve. the technology is there, but it hasn't been implemented. >> that's positive train control. that's what has not been implement implemented. >> why? >> well lots of reasons. congress in 2008 passed a law that said everybody needs to do it by the end of this year. everybody probably will not be able to do it. we're seeing progress in some carriers. in the case of amtrak, they're installing it on increasing amounts of track. >> when do you think your investigation will be complete? >> it'll probably take a year or so. >> that long? >> yes, yes. we're very detailed in our investigation. we don't leave any stones unturned. >> we're counting on you because we want to learn the lessons of what happened. >> well thank you. >> in this particular case to make sure it doesn't happen again. these lessons are going to be critically important. >> and i want to know it too because i tried the train myself. >> we all want to be safe. christopher hart chairman of the ntsb. thanks very much.

>> thank you. that's it for me. i'll be back later today 5:00 p.m. eastern in "the situation room." for our international viewers, "amanpour" is coming up next. for our viewers in north america, "newsroom" with brooke baldwin starts right after a quick break.

you're watching cnn. i'm brooke baldwin. thank you for joining me here. we have major developments in a story that brings together two of the biggest story lines of this year terrorism and police shootings. the dragnet widens in a terror case that has left one suspect dead in boston. sources say two others are also somehow involved. one of them this man here, this is david wright. he's about to be in federal court any minute now. we may also learn at that hearing how all three are connected and more specifically how wright arrested tuesday, knew the man killed at this scene