correspondents' dinner right here at 9:00 on cnn. good morning, everyone. happy saturday. thank you for joining us. we are coming to you live this morning from boston. it's 7:00 out here on the east coast and 4:00 a.m. out west. we are glad you are with us. we are joining you here from a beautiful site. it's a makeshift memorial for the boston marathon victims. and there is messages of support from all around the word. and more information about the kind of explosive devices the bombing suspects had. we will explain what they were and how they learned to make them. plus this -- >> if somebody had told me that i was going to have half a leg, basically, at the age of 38 before this happened i think i

would have never believed it, i think i would have been devastated. >> beautiful healther abbott, she made the choice to lose half of her leg to reclaim her life. how she is not inspiring just other victims but the entire nation. >> later -- >> the problem is this is just a band-aid solution. >> the flight furloughs may be ending but the white house says this is not a permanent fix, it's a band-aid. what congress's latest fix really means for your travel. this morning i am here joining you live from boston biby the memorial. and now the focus is on a landfill, and it's close to the campus that the suspect dzhokhar

tsarnaev attended. investigators are combing it for a laptop that could be in there, and they believe dzhokhar's laptop could be there and have more information about the planning and execution of the attack. pamela brown joins me now from outside the prison hospital where dzhokhar is being treated, and that's in deven. thank you for joining us. what can you tell us about the search for the computer this morning? what do we know at this point? >> reporter: well, poppy, what we know is that investigators in hazmat suits are still searching the landfill. we learned from a u.s. law enforcement officials that the leads to that search actually came from not only the suspect himself, dzhokhar tsarnaev, but also others who may know about the whereabouts of that laptop, those that may have disposed of it after the bombing at the boston marathon. but, then, authorities searching for the laptop in the hrapb feel

in bedford, massachusetts. >> and it's said that authorities found out others may have helped in the disposal of the laptop, so there may be accomplices or people with knowledge. and behind you, a lot of focus on the prison facility where dzhokhar tsarnaev is now at the hospital. what do we know about his condition? the fact that they were able to move him there, i think, tells us a lot. >> reporter: it does tell us a lot. at last check he is in fair condition. but we are told from sources that he is sitting up and able to write. seems like his condition is drastically improving, poppy, from where he was this time last week. so he arrived here at the medical center early yesterday morning and he was brought here bite u.s. marshal service. he is in a restricted part of the facility that is for high risk offenders. he has his own cell, a basic

cell with limited amenities, a steel door, a slot for food and a toilet and sink and that's it. >> thank you very much. the blood-stained boat where dzhokhar tsarnaev was finally captured has now been moved. it was towed from the backyard in watertown, massachusetts, to a remote locations. police did not find any guns inside of the boat despite the long standoff between dzhokhar and authorities. they were alerted when the boat's owner spotted blood on the side of the boat, and the tarp was flapping in the wind and then he called the police. and for the first time in days we are getting a look at the wife of dead bombing suspect, tamerlan tsarnaev. her name is katherine russell, and she was spotted yesterday leaving her family's home in rhode island.

you see her there in the head scarf and the woman next to her is her attorney. and i want to go to erin pike. you were the one that saw her yesterday and you have been there for days and you tried to talk to her. did she say anything to you? >> reporter: poppy, she didn't. i tried to ask her how she was doing and what was happening, and no, she did not say anything. her largest ushered her inside. she looked very overwhelmed when we did try to talk to her, poppy. >> in terms of where she was headed, we know from what we have heard she has been cooperating and talking to authorities and obviously incredibly upset about everything that has happened and she understands the importance of talking to authorities. do we have any sense of where she was going, what she was going to do? >> reporter: well, yesterday she went to her attorney's office and met with her attorney for about 90 minutes.

we don't know for sure whether or not she herself has spoken to authorities. all her lawyers have insisted is that she has been cooperating and they have been kphaoucommunh authorities. >> we heard that she insists she had nothing to do with the bombing plot, and is that still the belief at this point in time? >> reporter: is that the case, poppy. but we know the fbi remains very interested in her because she, of course, was living in the small apartment with tamerlan tsarnaev and dzhokhar tsarnaev. they think she knows some details or something that could help them with the investigation. we don't think the interest in her will go away, and we can tell you that many security vehicles have been stationed outside of her house all week, poppy. >> you know, it's interesting,

her lawyer kept emphasizing that she worked more than 12 hours a day, and worked seven days a week and her husband stayed home with the young child and she was out of the house a lot working, so that's a point that her lawyer made over and over again. erin, we will watch for developments. thank you very much. >> reporter: thank you. part of the boston investigation has stpfocussed on online al qaeda magazine that teaches terrorists explicitly how to build a bomb. our senior international correspondent, nick, joins us live from dag astan this morning. they are not just suggesting how to make a bomb but suggesting targets as well? >> reporter: what this has become is a forum for jihadists.

it's developed into a glossy printed magazine. what makes it good for al qaeda, if you will, from their terms is they made the publication in english, not arabic or any other language because what they want to do is target an overseas english-speaking jihadist want-to-be type of audience. they began to public the magazine several years ago. a lot of interesting details in it. as al qaeda terror camps took a beating in drone strikes, in 2010 they published the inspire magazine. cooking up jihad at home. and issue one devoted ten of the pages to bomb-making. it was written in english to inspire a generation of english. speaking radical want-to-bes.

and then making a pressure cooking bomb and timing and detonator circuitry. and then 2012, they suggested targeting sporting events and then issue in 2011 suggested using a car to mow down pedestrians. their intent has never been less than terror. and this man convicted for a bombing in new york's times square used a cocktail of explosives similar to inspire magazine instructions. and then another attacker followed yet another inspire recipe before he was arrested in 2011. but the magazine didn't just offer bomb-making, but ideology as well. bin laden's writings featured heavily as did attacks of the

u.s. the modern magazine style came courtesy of his edit in chief, a american living in yemen. he once boasted i am proud to be a traitor to america. and he was dead and killed in yemen september 30th 2011 in a u.s. drone strike. issue 12 was published last year. there has been nothing since. it's an arm of al qaeda's propaganda that they have been trying to push for many years, and when it gets flattened in one place it becomes open in another place. it reaches into the heart of the united states and europe, poppy. >> absolutely. nic robertson, joining us live

in dagestan. thank you. taking a closer look at this. it's a piece of an airplane found in a small space between two buildings right near ground zero. new york police commissioner explained the significance. >> as you get closer on the part you can see a serial number and you see the word boeing before that serial number. you can't say with certainty what that part is, but the assumption is it's part of the landing gear from one of the 9/11 aircraft. >> the five-foot long piece of metal was found behind an islamic community center, and the part will be examined by the ntsb. we will get back to boston after the break. ahead the latest on the investigation, and of course honoring the victims honored in this memorial, and some talk that more arrests could be

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i didn't always watch out for myself. with unitedhealthcare, i get personalized information and rewards for addressing my health risks. but she's still going to give me a heart attack. that's health in numbers. unitedhealthcare. welcome back. well, it has been just over a week since the boston bombing suspect, dzhokhar tsarnaev, was captured by police. in that week we have learned more and more about his inspiration and the equipment that may have been used. but there is still a lot of work to be done by investigators. many leads still to track down. here to help us go through the latest developments is tom fuentes, a former fbi assistant director. good morning to you, tom. thank you for joining us. the intelligence committee chair, mike rogers, he said i

don't think this is over. that's a quote. and he went on to say there are clearly more persons of interest and they are not 100% sure if there are not other explosives. what do you make of that? >> well, i think just what he says, that, you know, it's still difficult to believe that he could have done all this, or the two brothers could have done all this without help even before or after the event. so you know, they are looking into that. they believe that there probably could be other friends or associates or classmates that could be aware of more information about the actual marathon bombing and in particular how they spent the days afterward. the attack occurred at 2:50 in the afternoon on monday the 15th of april, and they have three full days before their pictures appear on worldwide media and the internet, and begin the events that happened thursday night and friday with the younger brother's arrest.

so there is an unaccounted for three full days. what did they do in that time? did they have more explosives that they exposed of and they had more the night they encountered the police. and the laptop in particular is important, and that's what they are searching for now. >> they are searching for a laptop that they believe could be in the massive landfill outside of boston. but i wonder in terms of the comments from mike rogers, he is the chair of the house intelligence committee meaning he is briefed on this every single day. can you give us a sense of what kind of information or who would be briefing him that would drive him to say something like i think there clearly could be more people of interest and they are not 100% that they are not more explosives? >> he would be briefed by the fbi and the officials from massachusetts and what they have been told about the investigation. for him to say persons of

interest are being looked for, that would be an obvious point that there must be other friends that were aware of what they were doing. dzhokhar went to glass afterward and went to the gym, and went to a party and was interacting with other friends and classmates. do any of them know more? are there any other people out there that have not been talked to or have been identified to talk to by the fbi? they are still looking for others that may be aware of it. and he says he disposed of the laptop. did a friend of his take the laptop in a dumpster somewhere, or was it taken out of town and thrown away and it could be in a possibly different landfill than what they know about. they are taking everything he says, completely being skeptical, and the idea that there may still be others that know more about this that have not spoken is something that they are pursuing.

if i could just add -- sorry. i don't think congressman rogers is saying that we know there are other suspects for sure. he is not quite saying that, but he is saying there are other persons of interest and that could be somebody believed to know the plot or somebody with valuable information that could help in the investigation. >> thank you for joining us this morning. appreciate it. >> you are welcome. a small bomb tears an empty car apart. find out why it's all part of a training program for police and federal agents so that they can catch future would-be bombers. and details on why texas

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welcome back, everyone. it's 23 minutes past the hour. investigators at this hour combing over every piece of evidence of the marathon bombing. and other federal agents are learning how to retrieve every single piece of evidence in an explosion so they can catch future would-be bombers. they are doing it by blowing up cars. >> poppy, the goal is to reconstruct exactly what an

investigator would find after a blast. when we first got here, this was a complete car and it was stripped down. the whole process started when an atf agent place add bomb in here. >> inside this car is a small bomb, ready to burst. the force of the blast is captured by our cameras. each showing thousands of shards of glass and evidence shooting into the air. this demonstration is part of a training exercise of the atf here in huntsville, alabama. the atf trains police and federal agents on how to investigate explosions. on this day they are working with a group of agents heading overseas. we can't show you their faces for security reasons. >> these people are going where america is a target or the host

country may have targets. in this situation, it enables them to go on the blast scene and not be overwhelmed by it. >> the techniques here are used by the same hundreds of agents that deploy to scenes like the boston marathon bombing. and the fertilizer plant blast in west, texas. >> that's cool. put that in the evidence, in the bucket. >> how do you stay ahead of the terrorists? >> as devices are recovered and reengineered, you look at the tactics and techniques that they use and learn from it. >> the atf says most bombs use a simple gun powder and energy source like batteries. >> five years ago, it could be the same thing, and it's based

on the availability of products. window glass and bomb fragments scatter everywhere, and even the screws, a common technique used by bombers to inflict more serious injuries. we saw this most recently in boston where bbs and nails were hurled into the crowd. >> a half inch quarter adapter. >> the theory is everything is still there, but it's in small pieces, and we spent hours sifting through stuff and tearing the car apart that. >> agents removed the windshield. >> real careful. >> and totally strip the car down. >> what happens inside these cars is when that blast hits, a lot of times it will pick the carpet under the floor and debris will go under the carpet and it comes back down on it.

we want to go underneath the carpet. >> ultimately the goal is to find that one nugget, that one piece of evidence that may be answers to a tragedy hopefully preventing another. >> the atf tells us they update their techniques to stay ahead of the bombers. poppy? >> thank you. we are learning more about the social media life of dzhokhar tsarnaev, including the presence of a deleted account. we will have more information on that for you and what it means for the investigation. but you're progressive, and they're them. yes. but they're here. yes. are you...? there? yes. no. are you them? i'm me. but those rates are for... them. so them are here. yes! you want to run through it again? no, i'm good. you got it? yes. rates for us and them -- now that's progressive.

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