said he does not plan to resign. elaine? >> omar, thank you. up this weekend by the u.n. security council has yet to take hold in sy there was more fighting sunday bombing that killed at least 50.

a massive refugee crisis that started six months ago continues to grow. every week hundreds of rohingya muslims are still crossing over the border from myanmar, formerly burma, into bangladeshe fled their homes, escaping their brutal military crackdown. our digital network, cbsn, investigated the crisis and found social media is being used as a weapon against the rohingya. the new cbsn documentary, "weaponizing social media: the rohingya crisis," premieres on our streaming network, cbsn, at cbsnews.com. coming up, insights on gun

control from a country that has nearly eliminated shooting deaths. and later, when they look at their diets with virtual reality goggles, they see the light.

growing up, a lot of people judged me because of the way i look. "i thought all asians were good at math." "you all look the same to me." "no, where are you really from?" "9/11 was your fault." "how do you see out of such small eyes?" "go back to your country." i guess i wish that people knew... we are not all the same. we are not all the same. we are not all the same.

>> announcer: this is the "cbs overnight news." the parkland massacre has renewed calls to approach gun violence as a public health threat, like diseases or car crashes. over the past two decades the centers for disease control and prevention has been restricted from researching the impact of guns on public health. dr. jon lapook explains the reasons for this and why it could change. >> reporter: what's been sorely missing in the gun control debate so far has been science. and there's a reason for that. back in 1993 a cdc-funded study found homicide was three times more likely in homes with guns.

that prompted congress to pass legislation in 1996 prohibiting the cdc from doing any research to advocate or promote gun control. the ban had a chilling effect on all gun-related research by the agency. in 2016 more than 100 medical organizationses urged congress to repeal the legislation. after the orlando nightclub shooting that left 49 people dead, i spoke with former congressman jay dickey, who helped write the law. he told me he had come to regret its effect. why do you think it's wrong now? >> if we had just kept the research dollars going and we had said science is important and we need to get to it, i didn't realize that it was possible to do that. >> reporter: dickey died last year. but his legislation continues. and last week following the school shootings in florida congresswoman kathy caster pressed health and human services secretary alex azar

about the lack of research. >> will you be proactive on the research initiative? >> we certainly will. our centers for disease control and prevention, we're in the science business and the evidence-generating business. >> reporter: this week two republican congressmen, leonard lance of new jersey and brian mast of florida, called for restoring cdc funding of research into gun violence. it remains to be seen whether that will snowball into actual repeal of the dickey amendment. dr. jon lapook, cbs news, new york. the winter olympics ended today with a spectacular ceremony and a possible diplomatic breakthrough. north korea said it is willing to hold talks with the united states. more now from ben tracy in pyeongchang, south korea. >> reporter: there were fireworks all around the olympic stadium during the closing ceremony of the games. but inside it was a picture of peace. athletes from both koreas marched together, and north korea's delegation was seated

just behind ivanka trump. she is here representing the united states, putting on a successful olympic charm offensive. >> it's very similar to what kim jong un did by sending his younger sister. she's a softer face. >> reporter: jean lee is an expert on korean relations. she says the olympics have opened up communication between the two koreas and now potentially with the united states. >> this is a moment that i hope the south koreans and the americans recognize. there's potential to turn things around here. >> reporter: south korean president moon jae-in says the head of north korea's delegation, general kim yong chol, told him north korea has "enough willingness to talk to the united states." that would be a sudden about-face. the u.s. says the north koreans pulled out of a meeting with vice president mike pence at the last minute during his visit to south korea two weeks ago.

but tensions could get in the way of talks if planned military exercises are carried out after the games. the trump administration also just imposed tough new sanctions on north korea and has provided only vague support for a summit between north and south, an offer made by kim jong un. >> does president trump support the leaders of south korea and north korea getting together at a summit? >> i think he believes that the dialogue could be -- could be helpful as dialogue always can be. as long as the message remains the same and the goals remain the same. >> reporter: of course the goal is to get north korea to give up its nuclear weapons, but previous attempts at sports diplomacy have never led to that and there are no signs that 16 days of sporting events here in pyeongchang have changed kim jong un's mind. elaine? >> ben tracy. ben, thank you. the "cbs overnight news" will be right back.

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while american lawmakers debate gun control, activists in other countries are suggesting measures that have worked where they live. roxanna saberi visited dunblane, scotland where a mass shooting in 1996 led to big changes. >> reporter: 22 years since a gunman opened fire at dunblane primary school in scotland -- >> she was killed. >> reporter: -- nick north relives that tragedy. >> at least 14 have been -- >> reporter: with each mass shooting in america. >> you tend to pick up on things that relate to what's happened in your own life. >> reporter: north's daughter sophie was one of the 16 children killed in dunblane. >> i just said no more guns. turns out that i wasn't the only one. >> reporter: he and other parents pushed politicians to prohibit private handguns. today britain has some of the strictest gun regulations in the world.

if you want to buy a semi-automatic weapon or a handgun at a shop in britain, you can't. they're now both banned. and if you want to buy a high-end shotgun like one of these, it could take up to six months to clear all the regulations. you can only use manually loaded rifles and shotguns for hunting or hobbies at shooting clubs like this one in london. member sherman strobul says the police will also visit your home to make sure you store your gun in a safe like this. they may ask your doctor about your mental health. >> if you've had depression or anything like that, you will not get a firearms license. ever. >> reporter: since the 1996 shooting in dunblane britain has experienced only one deadly mass shooting, while the u.s. has had more than 75. >> our response in the uk matched the culture here, which is not one that particularly wants ownership of guns. >> reporter: north now has a message for the florida students calling for more action. >> keep reminding people what

happened to you. don't take any notice of people who say, well, you're only teenagers. >> do you think these kids can really make a difference? >> i sincerely hope they can. >> reporter: in 1996, the same year as the shooting in dunblane, a gunman in australia killed 35 people. that led the country to pass sweeping gun reforms. germany did the same after school shootings in 2002 and 2009. in those countries gun violence did not disappear, but deadly mass shootings are very rare. elaine? >> roxanna, thanks. still ahead, through virtual reality they are changing their minds and helping their hearts.

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♪ saves your white clothes from yellow stains and black clothes from white marks still with 48 hour sweat protection. it won't let you down about 1 in 3 american adults has high blood pressure, which contributes to about 1,000

deaths a day. a doctor in los angeles is tackling the probl t virtual reality, giving patients an eye-opening view of t thr bodies. mireya villarreal looked into >> reporter:ha for jalways been. but on this night at holman church she was given a virtual look inside herself. >> oh, lord. >> reporter: and was shocked by what she saw. >> 2,000 milligrams. my god. >> reporter: when you see all that salt intake, what's that first reaction? >> oh, my god. you look at one dish and then you look up and it will tell you how much sodium is in that dish. that brings it to life. >> reporter: through a virtual reality app she was able to see a three-dimensional simulation of how salt could corrode her pumping heart leading to high blood pressure and possibly a heart attack.

>> when you actually see what's going on, that opens your eyes. >> reporter: african-americans develop high blood pressure at a younger age than any other ethnicity, with 46% of all black women diagnosed with high blood pressure. dietary guidelines suggest less than 2,300 milligrams of salt a day. but lasagna alone has 2,800 milligrams of salt. a fast food hamburger has 970. >> some people would hold the goggles out here, and we said no, no, it goes right up against your eyes. >> reporter: dr. brendan siegel knew virtual reality would have the greatest impact on changing behavior. >> you don't realize how it can just nudge your brain, just take hold of the emotional centers and not let go. >> reporter: after 12 weeks in cedars-sinai medical center's program this group's average blood pressure dropped seven points, with some people's systolic blood pressure dropping as much as 57 points. >> i am modifying and i am changing. >> reporter: now juanita cannon has seen the light. >> i'm just amazed. >> reporter: about salt.

mireya villarreal, cbs news, los angeles. up next, the olympics are

we end tonight on the korean peninsula. while it was last call today for the winter olympics, a fierce international competition continues to brew over liquid gold.

david jacobson now on the korean beer battle. >> reporter: taedonggang, north korea's first craft beer, can't be found among the imports in the south, but brew pubs like magpie in seoul might not exist without it. >> if it wasn't for it, i guess the korean beer being compared to north korean beer, then maybe it never would have lit the spark that it did. >> reporter: that spark came from a 2012 magazine article in "the economist" called "fiery food, boring beer," praising the suds from the north while trashing the south. >> they say like the day after that article was published every brewery in korea got a phone call from the government saying what are we doing, what are we doing wrong? >> reporter: magpie founder eric moynihan says relaxed liquor laws soon followed allowing smaller batch brews and igniting the south korean craft beer scene. how would you describe what craft beer now means to south koreans? >> before it was just like it was sort of an international product that was here and now people are starting to see it as like oh, this is a locally made product, we can put our own

stamp on it. >> reporter: why brew here in korea? >> if i could be honest, i would say the beer was not very good. >> reporter: phillip rankmore, part owner of budnamu brew pub in gangneung. >> it used to be an old makgeolli factory. we turned it into a beer brewery. >> reporter: the building itself is an old rice wine factory. his beers, the work of an all korean staff, give a nod to the local community. >> the original name of gangneung. >> reporter: whether it's the name or ingredients, it's rankmore's name of putting a traditional spin on budnamu beer. >> local ingredients like sungcho, kukwa, even rice, we use that in our beer as well. >> reporter: creating a new tradition to share with south korea and perhaps one day the world. dana jacobson, cbs news, seoul, south korea. >> that's the "overnight news" for this monday. for some of you the news continues. for others check back with us a little later for the morning news and "cbs this morning." from the broadcast center in new york city, i'm elaine quijano.

>> announcer: this is the "cbs overnight news." welcome to the "overnight news." i'm elaine quijano. in the wake of the latest school shooting in florida, pressure is building on broward county sheriff scott israel to be fired for neglect of duty and incompetence. 74 members of the florida house of representatives signed a letter calling on the sheriff to be suspended immediately. they claim his officers ignored repeated warnings about the alleged gunman and his deputies were untrained to deal with an active shooter situation when it happened. omar villafranca reports. >> reporter: it was a somber return for the survivors of the deadly mass shooting at stoneman douglas.

students and teachers returned to campus coping with the reality of what happened here. today governor rick scott called on the florida department of law enforcement to investigate the initial response to the shooting. video from school cameras showed that the armed school resource officer, broward deputy scot peterson, stayed outside the building while the shooting was taking place. peterson has since resigned. new reports say other deputies didn't enter the school either. broward county sheriff scott israel addressed the accusations on cnn's "state of the union." >> while this killer was inside the school, there was only one law enforcement person, period. and that was former deputy scot peterson. >> reporter: florida republican congressman brian mast said he'd support the idea of raising the age to buy a rifle to 21. the army veteran also says he'd support a ban on the ar-15, a weapon the former soldier says he's familiar with. >> it pains me to know that i went out there willing to defend

my country, willing to give everything, with almost the exact same weapon that's used to go out there and unfortunately kill children here in parkland. and i think there's a very real opportunity here for response. >> reporter: 74 florida republican state lawmakers are remove sheriff israel from his post. sheriff israel has already said he does not plan tsi >> omar, thank you. the parkland massacre has vinewed calls to approach gun threat, like diseases or car crashes. over the past two decades the ces n restcted from researching the impact of guns on public health. dr. jon lapook explains the reason for this and why it couo missing in the gun control debate so far has been science. and there's a reason for that. back in 1993 a cdc-funded stmic more likely in homes with guns.

legislation in 1996 prohibiting the cdc from doing any research to advocate or promote gun control.ted search by the agency. in 2016 more than 100 medical organizations urged congress to repeal the legislation. after the orlando nightclub shooting that left 49 people dead, i spoke with former congressman jay dickey, who helped write the law. he told me he had come to regret its effect. why do you think it's wrong now? >> if we'd just kept the research dollars going and we'd said science is important and we need to get to it, i didn't realize that it was possible to do that. >> reporter: dickey died last year but his legislation continues and last week following the school shootings in florida congresswoman kathy castor pressed health and human services secretary alex azar about the lack of research.

>> would you be proactive on the research initiative? >> we certainly will. our centers for disease control and prevention, we're in the science business and the evidence-generating business. >> reporter: this week two republican congressmen, leonard lance of new jersey and brian mast of florida, called for restoring cdc funding of research into gun violence. it remains to be seen whether that will snowball into actual repeal of the dickey amendment. dr. jon lapook, cbs news, new york. severe weather killed at least four people this weekend in the south. a wave of storms from texas to canada unleashed floods, devastating wind, lightning, hail and tornadoes. a week of heavy rain and melting snow has caused flood emergencies in several states. and the threat is expected to continue into the week. here's tony dokoupil. >> reporter: scenes of destruction like this motel shredded by a possible tornado in northeastern arkansas dotted the central and southern united

states this weekend. as pounding rains, rising rivers, and at least eight possible tornadoes ravaged the country. the roof of this home near bowling green, kentucky caved in, killing a 79-year-old woman. >> an elderly female which was located in the kitchen part of the house. >> reporter: the ohio river swelled to nearly three times its normal level in louisville, kentucky and spilled its banks further north, where cincinnati, ohio recorded one of its wettest days on record. >> it started raining real hard, and then he saw this barn, the metal from this barn take off, and then the windows busted out. >> reporter: those deaths in arkansas and kentucky on saturday ended a 284-day run without a tornado death in the u.s., the longest streak on record. but elaine, the good news is experts believe that streak wasn't only luck. predictions may be getting better. >> tony, thank you. the winter olympics ended

today with a spectacular ceremony and a possible diplomatic breakthrough. north korea said it is willing to hold talks with the united states. more now from ben tracy in pyeongchang, south korea. >> reporter: there were fireworks all around the olympic stadium during the closing ceremony of the games, but inside it was a picture of peace. athletes from both koreas marched together and north korea's delegation was seated just behind ivanka trump. she is here representing the united states. putting on a successful olympic charm offensive. >> it's very similar to what kim jong un did by sending his younger sister. she's a softer face. >> reporter: jean lee is an expert on korean relations. she says the olympics have opened up communication between the two koreas and now potentially with the united states. >> this is a moment that i hope the south koreans and the americans recognize. there's potential to turn things around here.

>> reporter: south korean president moon jae-in says the head of north korea's delegation, general kim yong chol, told him that north korea has "enough willingness to talk to the united states." that would be a sudden about-face. the u.s. says the north koreans pulled out of a meeting with vice president mike pence at the last minute during his visit to south korea two weeks ago. but tensions could get in the way of talks. if planned military exercises are carried out after the games. the trump administration also just imposed tough new sanctions on north korea and has provided only vague support for a summit between north and south. an offer made by kim jong un. >> does president trump support the leaders of south korea and north korea getting together at a summit? >> i think he believes that the dialogue could be helpful as dialogue always can be as long as the message remains the same. and the goals remain the same. >> reporter: of course the goal is to get north korea to give up its nuclear weapons, but previous attempts at sports

diplomacy have never led to that and there are no signs that 16 days of sporting events here in pyeongchang have changed kim pyeongchang have changed kim jong un's mind. s one. manatees in novelty ts? surprising. what's "come at me bro?" it's something you say to a friend. what's not surprising? how much money matt saved by switching to geico. fifteen minutes could save you fifteen percent or more. theseare heading back home.y oil thanks to dawn, rescue workers only trust dawn, because it's tough on grease yet gentle. i am home, i am home, i am home

>> announcer: this is the "cbs overnight news." the queen of hip-hop soul, mary j. blige, may soon be carrying around a couple of gold statues from the oscars. blige has been nominated for both her acting and her songwriting. michelle miller has her story. ♪ come on baby just party with me ♪ ♪ let loose and set your body free ♪ >> reporter: less than two weeks before the academy awards. ♪ ♪ before you get loose and start to lose your mind ♪ mary j. blige up for not one but two oscars is on stage in tampa, giving it her all. ♪ no more

♪ no more drama >> when it's a show with like real fans, the energy is through the roof. it's amazing. ♪ when i'm looking at me when i'm walking past the mirror ♪ >> reporter: no question about it. ♪ i'm not gonna cry no more mary j. blige writes her own script. >> she's not afraid of anything. >> reporter: she's not? >> no. >> reporter: producer jimmy iovine, one of the biggest names in music, has known blige for decades. >> mary brings you on a journey, and she connects with her fans like that. and she really reflects the life she's lived, the struggles and all. ♪ ♪ life has a way of making you live it ♪ ♪ take what you've been giving it ♪ ♪ the next move depends on you

>> reporter: and now the woman called the queen of hip-hop soul is taking hollywood -- >> need to get the coffin in the ground. >> reporter: -- by quiet storm. >> appreciate it. >> reporter: as the matriarch of a family of southern sharecroppers she strains against crushing racism and poverty in the movie "mudbound." >> you come all the way back. you hear? >> reporter: audiences at early screenings didn't even recognize blige as florence jackson. >> the beauty about all these accolades that are coming with this part is that i disappeared. and i think that's what acting is about. i'm so happy that people did not recognize me. i was happy about that. >> reporter: it might seem a long journey for mary j. blige, from the housing project in yonkers where she grew up just outside new york city to the south of the 1940s. or maybe not. >> what people don't know is my family is southern. my mother's southern.

my father's southern. and every summer, you know, you're a kid from new york, your family sends you down south in the summers. this woman is my grandmother. she was a sharecropper's wife. and my grandfather would be mowing the lawn and doing everything else and she would be out in the field. i saw her kill chickens. >> you had the template. >> yeah. she was definitely in my dna. >> action. >> reporter: "mudbound" was directed by dee rees, and both director and star have already made oscar history. rees as the first black woman nominated for best adapted screenplay and blige in two categories, best supporting actress and best original song. to get those two nominations in the same year is unprecedented. ♪ like a river ♪ as florence blige keeps her fury in check with one thing on her mind.

>> survival. my mom was that woman as well because my mom was a single parent. and we didn't live in a great neighborhood. we lived in almost you could call it beirut. for a child it was like a war zone. her whole goal was survival for her children. >> reporter: young mary's survival mechanism was singing. >> i would wake up in the morning singing commercials, singing songs. singing just -- i would wake up out of my sleep, aaah. and my sister was like shut up, shut up. i just loved it. >> who was your favorite go-to? >> the children's aid society commercial. remember that? >> sing it for me. ♪ he helps me with my homework when i'm stuck ♪ ♪ they help me with my homework when i'm stuck ♪ >> i can't remember -- i remember it but i don't want to go through all that. >> reporter: blige hit commercial success with her first album, which was considered a revolutionary blend of r&b and rap. ♪

you were the it girl. but there was a lot of other stuff going on. how did you survive it all? >> whoo. how did i survive it all? i just kept singing and partying. i was partying. i was partying hard too. so you think about a 21-year-old with all the success, with all the trauma and trials and all these things going on. how does she numb all of this? >> what did you numb? >> i was numbing just pain from just things that had happened to me as a child. ♪ ♪ where were you when they were touching my body ♪ ♪ where were you ♪ where were you >> reporter: she was open about the sexual abuse she says she suffered by a family acquaintance starting at the age of 5. that gives her an especially strong connection to today's "me too" movement. you wore black to the golden globes. was there a personal empowerment in that for you?

>> i mean, this whole movement is personal empowerment for me because a lot of women are that happened to them, like we growing up. we had to keep our mouths closed.ow h a platform to speak up these days. she's won virtually every music award again and again, including nine grammys. but she wasn't nominated for one in fact, very few women were. the night of the ceremony the presidw,ofrew criticism for saying that women need to step up. neeto step it up? >> women have been stepping it up f that comment is just ridiculous to me. in my way ♪ approaches, mary j. blige would seem to be sitting on top of the but for the past year she's been involved in a bitter divorce from her husband of 14 years,

kendu isaacs. she says the split even left her temporarily homeless. that's when she turned to jimmy iovine and his family. >> we just jumped in and said okay, what do you need? >> i need a place to live. >> yeah. well, she stayed with us. you know what i mean? we loved having her. breakfast with mary. it was incredible. >> reporter: and to blige it was incredible what happened last month. the day she turned 47. >> wow. what a gift you got on your birthday. >> oh, my star. >> you got a star on the hollywood walk of fame. >> yes. >> i always want to earn everything. i don't play games with this. i want people when someone is praising me or looking up to me, i need to have earned that. so i'm so grateful for this star right now because i've earned it probably three times but i'm so

grateful that i have this. >> you've earned it three times. >> i've been working my ass off. i worked really hard. >> reporter: setting the stage for what could be an historic oscar sunday for mary j. blige. >> this moment is the payoff and this moment says you know what, mary, you stood strong. ♪ ♪ like a river i'm lucky to get through a shift without a disaster. my bargain detergent couldn't keep up. so, i switched to tide pods. they're super concentrated, so i get a better clean. number one trusted. number one awarded. it's got to be tide

the u.s. women's ice hockey team is heading home from the olympics with gold medals around their necks. for the brandt family from minnesota it was a family affair. hannah brandt helped team usa to its first gold in 20 years, and her adopted sister marisa was on the ice for the unified korean team. dana jacobson has their story. >> yeah, it was an incredible feeling being able to be here with my sister. i kind of imagined what it would be like coming into it but to actually be able to live it out and do it with her was one of the most incredible feelings ever. >> i didn't even know what to expect going into the olympics and what it would be like. but now that it's almost over it's sad but we had so much fun

together and with our teams. and yeah, we -- i don't know. couldn't have asked for anything different. >> opening ceremony, different teams, but did you get a chance to see each other at least? >> yeah, for a short time. my team was really late for some reason. there was lots of traffic. so got in right away and then looked for the usa sign and found her. took a picture. and then we said bye. >> yeah. i was kind of sad because i was like oh, i'm not going to see her. kind of texting you need to get here now. and then i didn't hear from her. and all of a sudden we were about to walk outside and out of nowhere she appeared and i got a little emotional just because -- to actually see her at the opening ceremonies and to have that like dream come true for both of us was pretty exciting. >> hannah, obviously for you this was the gold medal that you all sought. can you take me into what it was like for you and for your team? you get to overtime. you go to a shootout. what was that shootout like for

you guys on the ice? >> it felt like we had a lot of confidence going into the overtime, we were playing well, we'd come from behind, and then for it to go into a shootout, we were just kind of like oh, we've got to do this now. >> that cool, that relaxed? >> yeah. you can't overthink it at that point. it's just a shootout. we do those all the time. and obviously this one meant a little bit more. but you have to kind of stay calm, cool, and collected. i don't know if it's quite sunk in yet but it's definitely a dream come true for all of us and it's just been fun to experience that with my teammates. >> can you take us into that moment, right that second when you knew the u.s. had won? what was that like for the brandt family in the stands? >> yeah, we were all sitting together and we were actually with some of my teammates, and i just remember she made the save. we all screamed. and then we ran down because we wanted to be -- we wanted to try and see you and be with other parents. but it was just excitement. pure excitement and joy and happiness for her team. and that they finally won gold. it was stressful to watch just because, you know -- yeah. it was very back and forth. and like you said, went into overtime and then a shootout. so i was on the edge of my seat

the entire time, just nervous for her and her team. but they won and it was a complete just -- yeah. so happy and relieved it was over and people would celebrate. yeah, very happy and proud. >> i know you guys spent two years where you guys really weren't in the same place as a family. not just you but with your parents. one of your sponsors helped bring you together. intel. how did they do that? >> intel was awesome. they came and shot both of us in our respective training locations. >> hey, mom. >> hi, mom. >> but for us to be able to kind of share our story with our family and friends that hadn't really seen a whole lot of us. >> even when you're not there i know i always have something to play for and that's you guys. >> it was incredible the way they put that together. >> what do you think the impact was on girls in america, in korea from seeing you guys play hockey? >> i've already heard from so many people back home. people tweeting at us, that we've inspired many, many people to start playing hockey. i think we've generated a lot of new fans, and i think for us to be able to do that that's what we're here to do.

we want to spread the game. we want to be role models for

steve hartman now with the story of a young man dedicated to keeping the memory of world war ii heroes alive. >> reporter: 20-year-old rishi sharma has always been into superheroes. the real kind. that's why as a junior in high school he made it his mission to meet as many world war ii combat veterans as possible. >> i ditched so many days of high school to go do an interview. >> reporter: you were skipping school to go interview vets? >> yeah. i started riding my bike to the local senior home. i interviewed those guys. then i started driving. >> reporter: it became a daily undertaking. >> every single day. >> reporter: when we first met rishi in 2016, he was driving all over southern california. >> i had a lot of missions. >> reporter: interviewing guys like marine tank commander ernie isley. >> they were going to make a big camp there and attack us at night. >> reporter: rishi talks to the

men for hours. >> wow. >> reporter: then gives the recordings to their families. he says he does it because time is short. we're losing about 400 world war ii vets every day. >> it's amazing how much history and knowledge is encased in each one of these individuals and how much is lost when one of them dies without sharing their story. the fact is i wake up every day to obituaries. guys i wanted to interview and i have to find out that they died. >> reporter: at this point i should tell you rishi doesn't come from a military family. his parents immigrated here from india. and yet he cares as much about our greatest generation as any young man i've ever met. >> my name is rishi sharma. >> reporter: in addition to his in-person interviews he was telephoning at least five world war ii vets a day. just to thank them for their service and sacrifice. >> it mens a great deal to me that you were willing to endure all of that so that i could be here today.

>> oh, thank you very much. >> reporter: after this story first aired, rishi raised enough money on go fund me to expand his mission across the country. he travels by car, often sleeps in it. so far he has interviewed over 850 vets in 40 states, learning about their stories and their scars. >> bullet wound. >> reporter: those that have healed. and those that will never. >> who is that? >> this is my brother, jack. and he died in my arms on the battlefield. >> reporter: nice to know as long as there are world war ii veterans willing to tare will be at least one young man -- >> oh, shucks. >> reporter: -- willing to listen. steve hartman, on the road, in redondo beach, california. >> you mean a lot to me. >> that's the "overnight news" for this monday.

captioning funded by cbs it's monday, february 26th, 2018, this is the "cbs morning news". floodwaters rise, and tornadoes touch down in a storm system that stretched from texas to canada. >> we're just lucky to be alive. everything can be replaced. and students, parents, and teachers make an emotional return to the florida high school where 17 people were killed by a gunman. >> i'm scared to go