error, derailments are caused by one reason: bad railroad tracks. something they say they're determined to improve. >> we have invested billions of dollars and we're going to continue to invest billions of dollars for the necessary infrastructure to move this commodity safely. >> reporter: but just like improving rail tanker cars improving the tracks come with federal standards that are basically left up to the railroads to comply. no real government authority, says the former government administrator, and no real proof any of this is getting any better. which leaves towns like barrington illinois at a dangerous crossroads. drew griffin cnn, barrington illinois. >> so much ahead in the newsroom and it all starts right now. happening now in the newsroom the impact of a u.s. special ops raid into syria that

killed a top money man of isis. >> this was the one who creates the revenue so they could conduct these operations. >> how big a blow is this to isis? and amtrak still not running five days after that deadly derailment. engineers spending the weekend installing new speed controls as investigators try to figure out whether the train was hit by an unknown object. plus -- more than two dozen twisters hit the heartland. >> it's not looking too good out here right now. >> and more severe weather could hit today. plus goodbye to a late night icon. >> no no no no! no! >> you're not going anywhere david letterman. >> what are you going to do? >> "newsroom" starts now.

hello again, everyone and thank you so much for joining me. i'm fredricka whitfield. the u.s. military has identified the six marines killed when their helicopter went down during a mission relief trip tuesday. captain dustin lukasavoch a pilot based pilot was from nebraska. sergeant ward johnson was a helicopter crew chief out of camp pendleton who was from florida. sergeant eric seaman also a crew chief out of camp pendleton, was a naib outtive out of california. and sara medina was from illinois. and lance corporal jacob hug, a videographer based out of okinawa. he was a native of arizona. as the families proceed to recover their loved one's

remains. we talked to the parents of chris norgren in his hometown of wichita, kansas. >> when he stayed here and lived here this was his room. >> in a small bedroom in wichita, kansas a big tribute. >> up above you're going to see that's all bishop carroll high school football stuff. >> a star athlete. >> an interesting thing. you'll notice there is a bottle of rum up there. >> reporter: what's that about? >> well i mean he was a good kid and everything but he also was a kid. >> and he loved life. he loved life and lived it to the fullest. >> reporter: robert and teri norgren are the parents of 34-year-old captain chris norgren. he was one of the six marines killed when a helicopter they were in crashed during a mission in in nepal. >> he was good. whatever he decided to do he was good at. >> reporter: a war veteran, he

led a team of reservists into combat. >> every one of those were impressed by the kid. yeah i'm proud. yeah i'm his father and all that but people need to know he made a difference and they can make a difference too. >> reporter: at 6'4" norgren looked like a tough guy, but his heart was as big as his brain. so when he was asked to go to nepal and help with the recovery he found his calling. >> to be part of something that's bigger than you. then after you do that that will help you get up every day and motivate you and get you going. and you need to make that something better. i truly believe that. and i know he lived by that. that's the reason why he joined the marine corps. this kid, at 31 years of age, lived his life a lot fuller than i have in mine and i'm 60.

>> reporter: for his parents, his legacy is one to be proud of but letting go is never easy especially for mom. >> when he was deployed i had two bands, a green one and a yellow one, and the last one said usmc forever. the day the helicopter went down i couldn't find it. it disappeared off my wrist, and i'm praying i can still find it. i'm not going to give up looking for the band because it's here where chris is and chris is with me. always. he is always with me every day of my life. i love you, chris. thank you for being my son. i'm so blessed. >> reporter: nick valencia cnn, wichita, kansas. >> and investigators still don't know what caused that marines choppers to crash.

president obama has ordered flags at half staff to honor the marines. corporal sara medina made the ultimate sacrifice while assisting the people of nepal. corporal medina's courage and dedication to serving and protecting others makes her a role model for us all. she will never be forgotten. now the interrogation of the wife of the top money man in isis. she was captured by the u.s. army's delta force. her husband, identified as abu sayyaf was killed. we're also learning new details of how that raid went down. the military said the delta force entered the target area on black hawk helicopters and detail ospreys. they scrambled off the aircraft and came under fire by isis fighters defending the multi-story building from inside and out. and once inside the building

the isis combatants try to use human shields. they manage to kill the fighters without killing the women and children being used as human shields. we're talking to the head of the london center of research and we have a counterterrorism official phillip mudd. good to see both of you. lieutenant schaefer how difficult is it to orchestrate a mission like this when there is so much uncertainty, especially once you get on the ground but really even during flight? >> you have to train and train to be prepared for this and you have to know specific detailed actual intelligence exactly when the target is going to be there, and more importantly, the layout of the building where you're going to put the helicopter down how far the dash is. this is very precise. frankly, fredricka, this is what the delta guys the special forces team trained for. they do it so well asknd they go

in these houses and they're able to rapidly discern targets from innocents. that's why we came out of this being able to protect the innocents, get the bad guys and come out with a lot of intelligence from the deal. >> phillip, how might this mission position u.s. intel or other military personnel to try now to get ahead of isis' any next move they may have planned? >> fredricka, this is rare. i spent 25 years in government and this is like a holiday if you're an intelligence professional. you can interrogate the wife. i think that's a bonus. i doubt she'll know that much. what i want to see is the digital information, that is the cell phones the laptops. i also want to see pocket litter any papers that were taken on the facility. what i want to know is people in patterns. is there anything that suggests communications with other people i can take down in the coming days or weeks? are there patterns of activity

places people visit like this guy who was killed during the raid that i can raid in the future that i can attack? this is a bonus of information that is hard to get using other means. that is using human sources, using technical intercepting people's phones and e-mails, going into that facility and getting laptops and cell phones should be a huge volume of information that will offer benefits for months to come. >> so there is this treasure trove of information. you've got abu sayyaf now killed and now attention is also going to be on the city of armadi in iraq. the use ice.s. military has quite the task on hand because isis has 90% control of that city. what do the coalition forces do with this kind of information? >> it's not going well. the u.s. military we train and the iraqi army are basically laying down their guns and running. there is no iraqi army. i said this before during our

interviews. we have to get behind the kurds. the kurds are the winning team. the regular military are too badly fractured. we have the shiites and the isis fighting themselves internally. we have to get serious about figuring out how to bring together the proper military force so stop this continued advance of isis. what we did, going against abu sayyaf is a good beginning. we need to shape operations to knock out and stabilize their commanding control, but we have to have a ground force that's actually able to do military operations and stop this onslaught. >> so phillip, you have one victory in terms of abu sayyaf's death, and you have this defeat or is it considered that? >> i don't think it's a detaetfeat yet, but if you look at

insurgencies they have motivations. people like isis who are motivated by a belief that they are ordained by god to succeed is tough to beat. isis was successful through the summer and fall. they faced some setbacks this winter. i agree with lieutenant schaefer. this is not about isis. this is about whether the iraqi military has the capability and more important, the will to face up with isis. they've had some successes, the military has. this is a setback. it's going to take years to figure out who will prevail. >> doesn't it also say something about the u.s. military intel preparedness when you look at what happened with abu sayyaf? doesn't it even say that strategy has changed or training has changed or intel has gotten better or all the above? >> there is no strategy. president obama, to use a golf metaphor pulled out a wood. he used a proper club for the issue. he didn't use a 7 iron with a 3

wood. we ought to be able to put this in a larger strategy to go after the proper resources for the bad guys. this is a good first step. we're moving forward, we've got great actual information. we follow up on that rapidly and continue to go after and pound their leadership in syria. syria is a safe haven which ought to be a good thing for the isis guys to know. >> thank you, both you gentlemen. appreciate it. of course there is more this evening. be sure to tune in at 7:00 p.m. tonight. watch the fareed zakaria special, "blindsided how isis shook the world." a hacker says he has broken into a plane's computer and makes the plane swerve sideways. what is the fbi now doing to keep us safe in the skies? you'll find out next. was just named motor trend's 2015 car of the year. so was the 100% electric e-golf. and the 45 highway mpg tdi clean diesel.

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a hacker claims he was able to break into the on-board computer system of an airliner while the plane was in the air. chris roberts, a cyber security consultant hacked planes at least 20 times and was even able to control the engines. cnn's anna perez joins me on the phone with the very latest on this. what exactly do we know about his actions, how he was able to do this and how the fbi learned about it? >> reporter: well chris roberts has been raising alarms about the vulnerability of aircraft for several years now, and according to an fbi affidavit that was filed in federal court, this was a search warrant application by the fbi as part of an investigation into whether or not roberts committed any computer crimes. this is the story that he told them according to this affidavit according to interviews in february. he said he was able to hack

aircraft between 15 and 20 times between 2011 and 2014. he said there was one incident where he was able to control at least one engine of the aircraft he was flying on and caused the aircraft to make a lateral move. now, all of this is in this affidavit. we don't know whether or not any of this is accurate. the fbi is still investigating. they haven't proved that he was able to pull this off, but we do know that after that february interview, in april, they met him after he got off a flight in syracuse because he tweeted that he was thinking of doing the same thing. according to the fbi, they went and checked the aircraft on which he was traveling, and they found that there was some tampering done. now, i'll give you a quick rundown -- according to the fbi, how he says he can do this. basically by connecting his laptop to an ether net cable to a box underneath his seat that

controls the in-flight entertainment system. this is the system we watch movies on listen to music. he said through that he was able to hack into the control systems for the aircraft. we should say that boeing which is one of the aircraft he said he was able to do this on boeing says there is a separation of the computer systems, that it's not possible. same thing with airbus that he says he's able to do this. airbus said they put spy laws to make sure this doesn't happen. this is an investigation still going. i should say chris roberts has been tweeting in the last couple days after this affidavit was made public and he says that the fbi has taken everything that he said out of context, and he hasn't said anything more about it. >> really quickly, is there a feeling he was blowing a whistle or was this some kind of cat and mouse game or do fbi investigators think there is something else behind this?

>> i don't think they know what to make of it. they clearly don't have enough to charge him with a crime right now, but they are investigating. he's been keeping business inside the security. >> evan perez, thank you so much. we'll talk more about this now. brian fitzgerald is the chief strategist at ifa, a cyber security information company. your company was actually holding a conference where this alleged hacker chris roberts, was supposed to serve as a panelist. what more can you tell us about him? >> well actually he was a speaker at the rsa conference of panelists. the rsa conference is the world's largest security conference. over 30,000 security professionals were coming to san francisco to really address these very topics to start to understand how we're securing the world today, what's working and what's not. oftentimes the speakers will bring hacks that were done in

theory or things they're trying in practice mainly trying to demonstrate to their peers what is possible and what risks are taken. >> is it possible he really wasn't doing anything but creating information on which to gain information on that this is really easy to do and you need to prevent this because hackers can get swu yourinto your material? >> it's hard to know his motives and we're looking into that now. what's the challenge, of course is when you demonstrate something is possible with even good motives. people with less good motives can take advantage of that as well. in this case even if his intentions were good of course they have to understand did he break any laws did he put anybody's life at any kind of risk? i'm not sure that's the case at

all, but that's the kind of thing that will have to be looked at and the law enforcement agencies will start to look at it and understand did he really do this or is it the fact it really isn't possible and something else occurred. >> so in the world of cyber information security is it unnerving that this happened and involved somebody you know? >> rsa is a very big player in the industry so we're very well connected. it's unnerving in the sense that if you look at the internet the next ten years we'll be connecting 10 billion things to the internet. there will be cars there will be refrigerators. we're only figuring out now how to make that happen. the most unnerving thing playing this forward over time is can somebody actually create a hack that doesn't just steal information and credit card data but put people's lives at risk in some fashion? to me that's the most important. >> rick, one has to wonder if

his alleged actions mean somebody can do something very similar and make it very dangerous for the flying public? >> that's absolutely true. we're working with those today, and they'll connect to the internet and they really are mindful of the potential risks. >> brian fitzgerald thank you so much. appreciate your time. still ahead, five days after a deadly derailment an amtrak busy northeast corridor remains closed. the latest on the investigation next. if you don't think seize the trip when you think aarp then you don't know "aarp". get inspired with aarp travel. plan and book your trip online and get hot travel tips from the pros. find more real possibilities at aarp.org/possibilities. it's more than the cloud. it's security - and flexibility.

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amtrak is scrambling to reopen its busy northeast corridor in time for the beginning of this upcoming

holiday. they are busy investigating before they can put the train back on the tracks near philadelphia. the ntsb appear to be ruling out the possibility that it was a bullet. erin mclaughlin is following the story in philadelphia. forp fredricka the mystery of the derailment of amtrak 188 continues. the assistant conductor says she heard them tell the engineer that they were hit by an unknown projectile. others say they never heard boston report that. they are looking into the possibility. >> we want to chase this lead down. we heard from the assistant conductor, that that was what she heard, some conversation

about that. and we now see a mark on the windshield we want to look at. we're looking at everything at this point. >> reporter: on monday they are expected to examine the fist-size marking on the left side of the windshield. they think the marking may have been there before the crash. there is evidence from the data recorder suggesting that baston manually crashed the train. the question is why. >> that amtrak crash took the lives of eight and injured 200 others. you spoke exclusively with the widow of one of those victims. what did she say? >> it was heartbreaking. jim gaines his family just devastated over the lotsss. he was a husband, and also the

father of two children. there's a picture of him there with anushka. he worked with the associated press as a video architects. he was on the way home to washington d.c. when that train derailed. his family was hoping he would be among the survivors, but it was not to be. his wife jacqueline spoke to me earlier today about how she will remember him. >> if there were any words to describe him, i would say the adjectives i would use would be he is kind he's humble he is a family man and not just with his children and his wife but with the community. i just feel completely blessed and i thank god that he gave me time with him. because he taught me and i think he'll still teach me.

he left a good imprint on the world, and that's a good thing. >> an incredibly difficult interview, fredricka. you saw in some of the pictures there how he was hugging anushka, hugging other people. apparently that's just who this man was. he loved to give out big hugs a man with an incredibly large heart leaving a major impact not just on his family but his coworkers as well. there has been a lot of speculation about what happened with this train, why it derailed who was at fault. gaines' wife says she's not thinking about that right now. her focus is on thinking about her children thinking about the man she loved so much. there's been a memorial that gaines' coworkers set up at the associated press for his children so they're looking at that and they're also right now in the process of trying to plan his memorial. an incredibly sad day for the gaines family as you continue to look at some of his pictures

there as he gives a hug to his daughter anushka. just a very painful time. his wife had the strength to speak with us because she wanted everyone to know how much of an impact he left on her, his coworkers and his community. fredricka? >> thank you so much. we look forward to more of that interview later on. we'll be right back. ♪ ♪ ♪ ♪ why do we do it? why do we spend every waking moment, thinking about people? why are we so committed to keeping you connected? why combine performance with a conscience?

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welcome back i'm fredricka whitfieldfield whitfield. right now the u.s. is questioning abu sayyaf's wife umm. they have collected all kinds of intelligence of isis including laptops and documents and cell phones. here's how it all went down. >> it was led by delta force who entered the area on black hawk helicopters and a rotator osprey. about two dozen got off the aircraft and the aircraft hovered overhead. they defended the multi-story building from inside and outside

positions. but special forces were able to get close to the building and blow a hole inside. they went in encountered isis fighters and there was more gunfire and hand-to-hand combat. they used the women and children as human shields, but the u.s. managed to kill the fighters without hurting women and children. they took with them umm sayyaf. >> most lawmakers in the u.s. are praising the mission, which was authorized by president obama, but some are questioning is it worth the risk? that may be because we still don't know a lot about this so-called isis money man who officials say was the target. we don't even know his real name. abu sayyaf translates to "father of the swordsman," clearly an

assumed name. what are lawmakers in general saying? >> reporter: well first, fred the national security council, they say he was a senior isis leader someone who had a major role in the oil and gas operations of isis. but as many have noted and some on capitol hill he wasn't all that well known. he didn't have as much of a high profile as other senior isis leaders that the u.s. had their sights on were so there are a lot of questions surrounding this mission. was it worth it? was it worth the risk? and how big a role did abu sayyaf actually have in isis? some lawmakers are throwing a little cold water on the significance of this mission, especially when it is weighed against the risk. here's what the top democrat in the house intelligence committee said on "state of the union" earlier today. >> this was an extraordinary risk. if one of our people were captured if we lost some of our special forces there would be tough questions to answer about whether it was worth it. and i think notwithstanding the success of this operation, we

still are going to have to ask those questions. was the intelligence value that we hoped to gain and the fact that we are gaining worth this kind of risk? >> and as those questions continue to swirl, fred the white house will be briefing members of congress this week. fred? >> so still question marks about what kind of intelligence was recovered, but we know from officials that they did grab all of the communication stuff. so lawmakers, are they expressing doubt that there is really value in any of this intelligence recovered, and they don't even know what intelligence was recovered? >> well i think there is a sense, fred among lawmakers that this was a successful mission, but let's see what the intelligence we get from it is. u.s. officials had said there are reams and reams of data they had acquired from the mission site including a computer. and we're hearing from the republican chairmen of the foreign affairs committee, ed royce, and he spoke about the extent of the information

recovered. >> as i understand it quite a treasure trove of information there with the laptops, the communications equipment, the cell phones that might allow us to find out funding isis when you hear about money coming in from other countries into isis. >> his wife umm sayyaf is also being enter being interrogated in eyeiraq. flooding severe and damaging winds. we'll look at the storm's path, next.

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(little girl) bye bye! made a best friend forever. the back seat of my subaru is where she grew up. what? (announcer) the 2015 subaru forester (girl) what? (announcer) built to be there for your family. love. it's what makes a subaru a subaru. a college brought left over food from the dining hall to a shelter, and i thought the same concept could be applied outside the doors of nyu. today we'll be going to a cafe.

there are about 100,000 restaurants in new york city. the strategy is to work with as many restaurants as possible and get that food waste to people who need it. it feels really good. our group has no minimum food requirement. we pick up any amount of food no matter how small it is. >> thanks guys. >> because that small amount can feed someone. volunteers can sign up on our website. it's very easy to do after work. >> i like going to the shelters and helping someone have a meal to eat. >> it takes a half hour of your time on any given day. >> after we drop it off, we always get the weight of the food. >> this is a little heavy. >> that's how we actually measure impact. >> dressing up leftover cuisine makes it so easy for us. >> every little bit counts. that's one person's life you

just changed. you see the line now. they're actually going in for dinner. all that food today would have been thrown out without your help so i really appreciate it. since we started, we rescued over 100,000 pounds of food. it's just the beginning. the need is so great and there's so much demand. with more restaurants, who knows how much more we can do. all right, severe storm threats keeping people on edge across the u.s. [ thunder ] >> storm chasers in oklahoma captured a tornado on the ground near elmer right by the texas border. it was just one of dozens of twisters reported actually as a large band of severe weather moved across the plains states overnight. forecasters say today 30 million people are at risk for severe weather. let's bring in meteorologist tom seder.

folks need to have those weather radios and get near those safe places. >> you can see from the water vapor map there was a lot of fuel from the texas border to canada. yesterday 29 tornadoes. last week we had over 70 saturday and sunday. it was the same place, tornado alley, up to the north. this is the one you saw in the video, in elmer, which is off to the west. this is medicine park outside oklahoma. if we have isolated tornadoes, they're going to be smaller in size. mainly a threat for wind wind damage and hail today. cooler temperatures back behind this. 74 a high today minneapolis. temperatures are going to fall throughout the great lakes and new york this week. it's only a slight risk and that's good news compared to the last several days. on the radar picture, we're

seeing snow from bismarck to winnipeg but that line stretches from the north all the way back to the south. you a big "late night" fan, david letterman? >> yes. >> this is a big week of a big goodbye, and coming up we're going to talk about the preparations in place for a big three-day signoff for a man who has done over 6,000 broadcasts. we're going to take a look, next. ♪ >> you're not going anywhere david letterman. you build the car of tomorrow, today. introducing the next generation chevrolet volt. ♪

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we all miss her. >> what's your name? >> don graeber. what you call love was invented by guys like me. >> you're happy because you're successful. for now. but what's happiness? it's a moment before you need more happiness. >> nostalgia literally means the pain from an old wound. it takes us to a place where we ache to go again. >> can you believe it? tonight is the series finale of amc's hit show "mad men." needless to say it's a big event for the fans and the network. a lot of other amc networks are going dark tonight in honor of the show. let's talk more about the media correspondent and host of cnn's

reliable sources, brian selter also media specialist with us. brian, what can what can we expect from this final episode? i feel like it hasn't been a really long run for such a big show. >> that's because there were such long breaks in between the seasons. you're right. the show on almost a decade but the episodes were put out one at a time long breaks in between seasons. a while since we saw this final season. we know nothing about the episode and exactly how amc wants it to be kept a very closely held secret. i talked to the president of amc, charlie collier. he thinks we are going to be impressed by it. here is what he said. >> yeah? >> i think it will stick with people for a long time and i have gone back and watched the series a number of times at different points and you do based on where you are in your life you see these characters'

lives in a different way and for me the passage of time just a remarkable hallmark of madmen and because it is so beautifully written and executed we will watch it later and say something special is captured in that decade. >> he was making the point that shows do end but they never really end anymore because of netflix and am sfwlon and other on-demand services we can at least go back and rewatch them someday. so sean pierre let's talk in general, you know "mad men" it was kind of a breakthrough hit, wasn't it and changed the habits of viewing audiences and revealed the real fascination with this era that who knew people even had. >> oh my god. "mad men" was a cultural touch stone, if you will. from a sensory perspective, right, for the visual the clothing was beautiful, the clothing of the '60s and '70s to the music that we heard, right? what people really really loved was the dynamic between the characters. it spawned so much. they had a line at banana republic, a line at brooks

brothers. could you upload photos of yourself to facebook for a carousel app. really people got so engaged in this show unlike so many other shows that are out there now. it wasn't a ratings juggernaut of course, but culturally when i spoke to the actors that's what they respected the most, the fans loved them for what they were and could feel nostalgic watching the show. >> the people are so pretty and handsome and that helped too. before i let you guys go let's also talk about another big good-bye this week letterman's last show will be this wednesday, big buildup last week following decades of late night laughs since his first snow 1982. let's take a look back. >> david letterman. >> you are talking to dave manager of the taco bell. nobody does that.

in an elevateorelevator top ten reasons you are still single. >> make sure the white house library has lots of books with big prints and pictures. >> let's go to the gap and buy underpants. >> i will say off the top here you look different than i remember you. >> whatever it is you thought was happening, it's over. there is no feud. there's only peace. >> peace and love? >> please say hello to johnny carson. >> i've watched johnny carson and you are no johnny carson. >> lots of laughs and, of course you know speaking of carson letterman really is the last late night host from that era, right, brian? so this is a real change of a guard. >> could you say from the "mad men" era seeing a baby boomer leave the stage. it really is generational change

and all of the comedian on late night now from fallon to kimmel and all the rest they owe a lot to david letterman. >> oh my gosh and i think jimmy kimmel in fact says he is not going to have his show on that last night, really to pay homage to david letterman, he says he owes so much to david letterman and sew wants to show respect and won't have his show but sean pierre we saw bill murray among those, the first, you know on his show. and he apparently is going to be among the last on his show, given he has been on the show so many times, something like 40 times? >> bill murray will be back tom hanks will be back and eddie vedder will also be performing there as well. the big question is will jay leno come back? a lot of people are saying that he might, or he actually has never been on. will he and david letterman put their feud to rest? apparently leno invited letterman on to his show during his last week and letterman refused, just saying all the shine should be on leno himself.

we will see if leno comes back to letterman show for the first time and buries the catchet, i hope so i think would be amazing. >> letterman's ratings going up the past few weeks, people do want to see how he is going to sign off. suspect that a shame, because in your good-bye that's when everyone decides to tune in? if only all of that support and love there was along the way, then maybe the demise would be different? everyone loves letterman and everyone certainly, you know, honors his career because he really has been one who has exhibited real staying power on late night for a very long time, brian. >> leavening on his own terms. brought so much to late night, innovative like no other comedian has. he deserves the kind of sendoff he is getting with these tributes from across the television landscape. >> sean pierre what's next, the next chapter of late night, since we are talking about good-bye to one generation hello to another, what is to be expected when colbert steps in? >> i thank you all right of people are looking to see what

colbert actually does and who is stephen colbert is the real big question here right? you know what character will he play? will he play himself? ly play to social media, what a lot of these other jimmy kimmel and jimmy fallon have been doing, of course trend the day after their show on social something david letterman has never really been able to do. really interesting to see whether colbert becomes the talk of social. i think it would be the next generation. >> and big shoes to fill brian. i don't know if -- colbert, a great opportunity but, oh the pressure. >> i think that's why letterman is stepping down this week and come better not taking over until september, they can literally have a few months in between the two. >> thanks so much. we will all be watching of course this week. brian, sean pierre regis, thanks so much to both of you. much more right after this. >> 1600 pennsylvania. [ applause ] >> if she wins the election the chances are 100% i will move

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happening now in the newsroom the impact of a u.s. special ops raid into syria that killed a top money man of isis. >> this is the one that create the revenue so they can conduct these operation. >> how big a blow is this to isis? and amtrak still not running five days after that deadly derailment engineers spending the weekend installing new speed controls as investigators try to figure out whether the train was hit by an unknown object. plus -- [ thunder ] >> close enough. >> more than two dozen twisters hit the heartland. not looking too good out here right now. >> and more severe weather