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all: cbs cares! a new cbs news poll today shows how donald trump and hillary clinton match up in two key battleground states. julianna goldman in the washington bureau with the latest on the presidential campaigns. >> you know running for president is hard. i got to tell you. >> reporter: as hillary clinton and donald trump prepare for a likely match up in the general

election, a cbs news poll shows tight races in two states. clinton and trump tied in florida with clinton one point ahead. in ohio, the democratic front-runner leads the presumptive nominee by five points. 44% to 39%. >> i am going to be the nominee. i do think there will then be the obvious need for us to unify the party. >> i think secretary clinton is jumping the gun a little bit here. >> bernie sanders in ohio is beating trump by nine points. helped by young voters and independents. both parties are unifying behind their nominee helped by voters backing trump and clinton because they're against other side. >> i will be running against donald trump in the fall. i do not want americans and good thinking republicans as well as democrats and independents to start to believe that this is a

normal candidacy. >> on fox the billionaire businessman warned that sander's criticism of clinton has been tame compared. >> she shouldn't be allowed to run for president. she has bad judgment. hillary is weak, a weak person. >> two national polls out today showed trump and clinton are the least popular likely nominees in modern history. more than half registered voters have negative opinions. and 47% would consider a third party candidate. >> thank you. trouble on mt. everest. altitude sickness apparently claimed the lives two of climbers in recent days. and dozens more are struggling. demarco morgan tracking it all from here in new york. demarco. >> what a story. an official in nepal says 30 climbers have gotten frost bite or become sick on mt. everest the two climbers did not make it down from the tallest mountain.

30-year-old dutch climber, eric arnold died after complaining of feeling weak. he was able to get to lower altitude. maria strydom showed signs of altitude sickness before she died. some climbers were as high as 21,000 people. no word on the where abuts of two climbers last seen near the summit. jim davidson knows about the challenges. with 30 years of experiences climbing the world's tallest peaks. >> up on the summit of everest it is 66% lower in oxygen availability. so as a result you can barely, stew stand up and walk, 20 feet across the ground can make your heart pound in your chest, make your head throb and make you dizzy, literally standing up and walking, 20, 30 feet. >> last year's climbing season was canceled after the earthquake wreaked havoc on the area.

climbing attempts were halted in 2014 soon after an avalanche killed more than a dozen sherpa guide. more than 250 people have died in the efforts off to climb mt. everest. elaine since the first historic trek recorded back in 1953, it has been an issue. >> absolutely punishing conditions on the mountain. demarco morgan. thank you. two horses died saturday at the preakness stakes in baltimore. the tragedies are reigniting concerns about the sport. >> reporter: there were celebrations at the winner's circle for preakness winner exaggerator. but his moment of triumph overshadowed by the loss of two horses. 9-year-old homeboy chris won the first preakness contest in maryland, then collapsed and died moments after having his photo in the winner's circle. chris campitelli tweeted devastating loss. homeboykris died from apparent heart attack on walk back to arm after preakness day win. later, the 4-year-old horse had to be euthanized breaking her

left leg coming out of the final turn. the on call veterinarian. >> an open wound. and -- that, that just does not have the possibility of surgical fixation. >> they grew up. >> veterinarian, dr. gregory barbosa says the horses are specifically bred to race. >> when you have a good racehorse, you know you do, they want to run. bred to do and feel good when they do it. >> reporter: the jockey club released statistics showing 14% decrease in the frequency of fatal injury. 484 horses died at race tracks in 2015. 583 died in 2014. both horses will undergo analysis to determine what went wrong. people for ethical treatment of animals, peta is asking veterinary records be released and medications used up two two weeks before race day. elaine. >> jamie yuccas, thank you. coming of on the "cbs overnight news" -- a paralyzed man find new hope in an experimental stem cell treatment. a place like shhh! no. found it! and definitely lipton ice tea.

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an experimental procedure aimed at repairing spinal cord injuries is showing promise. it uses stem cells in the damaged areas in hopes of restoring function and movement. dr. jon lapook has one patient's story. >> there its nothing we could have done to change that night.

>> reporter: april 9, 2013, james mason was an accident waiting to happen. he had been drinking and his stepfather, bob gambutti tried to stop him from driving. >> he grabbed on to me. i grabbed on to him. he pulled my leg out. he fell back. his neck broke. >> i remember hitting the ground. with the stretcher. >> most devastating part, the first day they lifted him out of the bed and nothing moved. just his head. that really hit hard. at that point, i really wanted to go jump off a bridge. >> mason was left a quadriplegic with just the slightest ability to move his arms. doctors she'd would never talk again. gambutti, a retired cop became his full time care giver and found a trial at mount sinai hospital. >> take good care of you.

>> reporter: we spoke with mason before he underwent delicate neck surgery to try to repair the damaged portion of the spinal cord by injecting stem cells. >> what is going on in your head, what are you thinking, hoping for? >> just super excited ready to get it done. and go back to rehab. and start proving the doctors wrong even more. >> slow. >> reporter: the surgery performed by dr. arthur jenkins took four hours. researchers followed james and five patients all with severe spinal cord injuries. we met up three months after the surgery. >> notice any change? >> my wrist has the got in a lot stronger. able to grasp around a lot of other things. and after another three months. >> almost doubled with how much i have gotten better. the sensation back into my feet. i can feel pressure on to them. throughout my legs. and they have noticed that i have a little bit of movement into my hips now. today the company sponsoring the trial reported four of the six patients experienced improvement in both muscle strength and function. dr. jenkins who is not

affiliated with the company continued to monitor mason. >> my two cents is, it worked. that this actually changed neurologic recovery and function. that his actual functional improvement is from the stem cells injected. mason does not blame his step father for the accident. in fact, he is grateful. >> i had gotten in my car i could have killed some one else. someone's mother. father. some one's child. i wouldn't have, if i would have survived through that. i wouldn't be able to live with myself with that. >> it's tough people. say i'm sorry. don't beep sorry. i still have him here. >> reporter: mason believes the stem cells accelerated his recovery. hard to know what would have happened without them. more research will be needed to try to establish whether they repair damage to the spinal cord. dr. jon lapook, cbs news. >> still ahead on "cbs overnight news," the unusual sight that brought travel tubing a crawl in los angeles.

space shuttle fuel tank the size of half a football field across 16 miles of los angeles. onlookers took selfies and watched from rooftops as the tank rolled by. >> you are going to be a great astronaut. you smile a lot. >> reporter: it took months to choreograph this move. police closed streets. public works altered traffic lights and utility wires to make way for the 66,000-pound tank. as the it skirted by trees. traveling at just five miles an hour.

astronaut charlie precourt. >> can't wait to see it stacked in vertical in the museum. it is going to blow people away. >> reporter: the fuel tank shipped from new orleans to california through the panama canal. it will eventually be displaced inside the california science center in full launch position. attached to two rocket boosters and space shuttle "endeavor" which hitched a ride to los angeles on top of a 747 in 2012. the tank known as et-94 was built to propel endeavor into space. nasa phased out the shuttle program before it could launch. astronaut kay higher, flew on endeavor and hopes seeing this will inspire young minds. >> think about taking us beyond where we have been in space -- exploration. on to mars. >> et-74 on display in 2019. elaine. >> terry okita in los angeles. thank you. up next, a mother and daughter reunited after 50 years of separation.

finally tonight, a mother and her daughter separated decades ago. have been reunited and barry peterson has their story. i am nervous. i am excited. and i waited 50 years for this moment. >> reporter: for cindy burns, the wait is almost over. it started when she was a 10-month-old baby left with a korean adoption agency, amid that country's poverty, this was a chance at a better life in america. believed her korean mother, soon-ja. >> did you believe you would see your daughter again? >> no. don't believe it. don't know how i will find her. >> cindy grew up in a connecticut family. she had all but given up finding her birth mother.

>> i had gone to korea last year. kind of looking for her. and i made peace with the fact that i would probably never find her. >> reporter: when a dna sample led her to soon-ja. >> it says 99.99% she is your biological mother. i so much wanted tight be true. >> reporter: there was more. her mom had been living on the west coast, they had been in the same country for decades. cindy flew to tacoma this weekend to meet her mom. >> cindy. >> you are so beautiful. >> i always say where can i find her? i don't know where she is. >> we are back together now. >> uh-huh. i know. oh. >> when we sat with them, they couldn't stop holding each other. as if they were afraid they might lose each other again. what does it say about your mother that she was willing to be open about this secret that all of her life she hadn't

shared with her family. >> it's confirmation that she did love me. >> reporter: at soon's home there was a family reunion. cindy with her newly found sisters and brother. >> it is what all of us who are adopted want is for our existence to be validated. >> here we go! >> to know our parents loved us. >> reporter: barry peterson, cbs news, tacoma, washington. >> that's the "cbs 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.

>> announcer: this is the "cbs overnight news". welcome to the "cbs overnight news." about 180 miles off the egyptian coast the search continues for the black box data recorders from egyptair flight ms-804. it went down thursday killing all 66 on board. holly williams is in alexandria, egypt, with a newly release audio recording from the doomed jet. >> the recording captures a standard check in between the pilot and air traffic control over zurich, switzerland. >> reporter: 2 1/2 hours later the plane plunged into the water.

egypt's president, abdel al-sisi said his country is sending a submarine to recover the flight recorders or so-called black boxes in the same area where they found debris from the crash including human remains. retrieving the black boxes in water up to 10,000 feet deep, could prove difficult. a u.s. intelligence source told us that the flight recorders have been approximately located via the electronic pings they emit. but so far there has been no official confirmation. data published by av herald, an aviation industry website appears to show there was smoke

on board just before the plane crashed. though experts say the smoke alarms could also have been triggered by a sudden loss in pressure. allistair rosenshine is a former pilot with british airways. >> we can rule out say, pilot error, human error as we call it, because there is no human error that would have triggered smoke alarms. >> reporter: officially though, no cause has been ruled out. including terrorism. even though according to u.s. investigators, there have been no credible claims of responsibility. elaine. >> what are the possible causes of the deadly crash. john dickerson spoke with cbs news aviation and safety expert, captain sully sullenberger. >> investigators will be talking to as many people as they can. trying to interview any one who had anything to do with the flight. any one who touched the airplane. i should till you that -- as aviation safety has become better, and accidents have become more rare.

their causes have become more unique. because aviation has done a good job of reducing eliminating what used to be many common causes of accidents. what we are left with is more black swan events. they will be looking in many different areas. as aviation safety has gotten better, there has to be more focus on aviation security. whether or not this happens to be intentional act or not. for 30 years one of my biggest concerns is what would be called all the activities behind the scenes in the back of the house. so to speak. people who service and clean and cater the airplane. some times the services are outsourced to third party vendors they have high turnover. whether this is a terrorism event or not. global experience tells us we need to look at everybody touching the airplane and in this case. >> flight ms-804 had a busy itinerary before the ill-fated

trip to cairo. previous spot was in paris. it has the french taking a new look at their security procedures. mark phillips reports. >> reporter: there has been no evidence the egyptair crash had anything to do with security at anything to do with security at charles de gaulle airport. and whether there was a lapse that may have allowed an explosive device to be placed on board if there was. this isn't the first time they were worried. an official of the union that represents 5,000 security workers here. all of whom were subjected to renewed rigorous police checks following the paris terror attacks last year. and some of whom were found to be a security risk. >> translator: after the air is attacks they withdrew -- 85 badges. people who can no longer work in security. the airport sits in paris' northern suburbs which have immigrants from muslim countries. many of whom find work here.

newt security checks look for evidence of radicalization, where the employees have traveled, what they read, who they associate with. known as the insider problem and acknowledged here and elsewhere. mike vivian, former head of operations for britain civil aviation authority. >> clearly some countries, are possibly more vulnerable than others to this. it can be surreptitious, below the radar so to speak. a serious issue. it is being looked at. >> reporter: the fact that egyptair plane had been to tunisia, with security problems before it got to paris added to concerns. aviation security is an international problem. and is only as strong as its weakest link. mark phillips, cbs news, charles de gaulle airport in paris.

>> shock waves are being felt here in the united states. airport security tightened at a time when the tsa is under fire for long wait time at security gates. kris van cleave reports. >> reporter: at los angeles airport police are restricting airport employee access at 150 doors within passenger terminals also adding more police officers to focus on potential vulnerabilities. security jilters as transportation security administration has been struggling to address nationwide staffing shortages and long checkpoint lines. tsa administrator -- >> we need to increase the staff size of tsa to meet demands of the growing population and the potential changes we might see as we learn more and more about what might have happened to egyptair. >> last year an undercover test by homeland securities inspector general found tsa screeners failed to catch 95% of mock

explosives or banned weapons brought through security check points. since then at least two aircraft overseas have been bombed. what is your comfort level with your officers' ability to spot some of the types of ex-plea sieves we have seen targeted aircraft this year bombs inside a soda cans, inside of lap tops. >> very confident we have improved our ability do that and focus on types of device that have been talked about in the news as well as those thing that we see coming. >> reporter: critics say the tsa should have seen historically long lines coming and before tens of thousand missed flights. tsa is moving canine teams stand additional officers to the chicago area air ports to help with long lines here. the agency reports signups for tsa precheck, prevetted expedited screening topped 15,000 a day. compare that to this time last year. that is an increase of nearly 4 times the daily enrollments.

kris van cleave, cbs news, chicago. the "cbs

president obama arrived in vietnam sunday. he is only the third sitting u.s. president to visit the communist nation. later this week he will be in japan. margaret brennan is traveling with the president and joins me from hanoi. margaret, what is the president hoping to achieve on this trip? >> well, elaine, the goal here in vietnam is to turn this former foe into a friend. and in doing so send a very strong message to china that the u.s. will not let them militarily dominate all of asia. china is currently locked in a number of territorial disputes in south and east china seas. so president obama is considering expanding weapons sales to vietnam. that's a controversial decision

kidding that this con kidding that this country is still run by an authoritarian communist government. >> margaret, later this week the president will be the first president will be the first sitting president to visit i t hiroshima. why has he decided to go? >> well this extremely symbolic visit is mainly to underscore his legacy of securing nuclear weapons through arms control deals like the one he brokered with iran. so, in hiroshima, president obama will be underscoring the fact that the very first atomic bombs ever dropped were by the u.s. on japan in 1945. and they killed hundreds of thousands. so, he is not going to apologize for those attacks, but he will say that it gives the u.s. a unique responsibility to make sure that no nuclear weapon is ever used again. >> all right, margaret brennan in hanoi,vietnam. thank you so much. the president's trip comes 41 years after what has come to be known as fall of saigon. ending the u.s. involvement in the vietnam war.

david martin has one remarkable story from the day. >> reporter: if you had to boil down the vietnam war to one moment in time -- it would be 5:20 in the morning of april 30th, 1975. >> it was a microcosm of the whole war. no doubt about it. we promised the vietnamese for years and years don't worry, we are with you all the way. >> army captain stu harrington had been herding panicked south vietnamese on to the last helicopters out of american embassy in saigon and promised them over and over. >> as long as i am here you don't need to worry. >> reporter: then orders came straight from president ford. >> we have got to go. it is a presidential order. the ambassador is gone. there is nothing we can do about it. >> reporter: before he snuck away to a helicopter, harrington uttered the less than immortal words to the waiting vietnamese. >> translator: excuse me, but i

got to take a leak. >> i never see him again. >> one of 400 left behind. communists sent him to an education camp. >> what was education camp? >> prison. >> prison. >> nice fancy word for prison. >> bin made it to the u.s. in 1979. married. got a job and discovered a talent for woodwork. harrington continued on with his army career. >> there wasn't an april that went by for the better part of 37 years that i didn't think about that. what would i say to one of these people if i ever met them. >> then he got a phone call? >> i said, stu, this is bin pho, you don't know me, i am one of the ones that got left behind. >> i felt like i needed to

explain and apologize. he wasn't reallywanting explanations or apology as much as to call me up and to say i'm okay. i did fine. don't worry about it. >> reporter: it has been 41 years since harrington ended the vietnam war with his cheap little lie to bin pho. seeing them walk together past the vietnam memorial, tells you the only way to really end the war is through forgiveness. david martin, cbs news, washington. opioid addiction one of the biggest health threats facing the nation. although many americans have become addicted to prescription painkillers, others still get their high the old-fashioned way. scoring heroin on the streets. demarco morgan has an investigation into one man's battle to kick the habit. >> real quick. good enough. >> your eyes are own. you think of hair win. nothing else. nothing else. any addict watching this will like attest to that. and if you didn't have money you

think how to get money to get heroin immediately. >> reporter: jason amarol's hunt for heroin began at 7:30 in the morning on a brisk day in downtown boston. he allowed our cameras to follow him as he tried to get money to get high. >> get my money at western union. will you save me a little. >> are you serious? come on. >> yeah, don't answer your phone, you [ bleep ] dumb [ bleep ]. >> from a parking garage he called his aunt in florida begging for cash. >> can you send me $30. last time i am doing this to you. if this doesn't work this time. i don't know what i will do. i'm serious. >> reporter: he hopped a train to meet a friend that gave him a few anti-anxiety medication to take it edge off the urge. >> how much you want, four of these right now. then shoot heroin.

>> he searched for a bathroom to crush and snort his pills. >> we are in a high drug area. >> jason went for the one building he knows always open to the public. >> excuse me. where is the entrance to city hall? >> straight up there. >> once inside city hall. >> check my bag, dude. >> headed for a basement bathroom. put his money his aunt sent to use. >> that's klonopin. around noon we met jason on the street after he scored more drugs from friends. >> heroin. and i was sick. now i just did a shot. i am very, very high. like i feel great. i am going to go do what i need to do. to make money. you know what i mean? and that's just how it is. >> reporter: jason's life wasn't always like this. he grew up in massachusetts with his younger brother andrew raised by a single mother who by all accounts gave her boys a happy childhood. but when jason was only 11, his mom died of cancer. so the boys moved in with their father. and in college, jason started experimenting with oxycontin,

which soon led to heroin and so began the life of an addict. the morning we met him he was on multiple drugs. >> over the past three days what is in your system? >> what have i done? heroin. klonopin, xanax, cocaine, crack, that's it. >> by that evening we found jason at a friend any house. the two scored some heroin mixed with fentanyl. they prepared it while the friend's 3-year-old child watched tv in the next room. remember the next morning, jason is supposed to show up at a rehab center the his phone rang and it was his younger brother. andrew. >> my brother. >> andrew is also an addict who called to tell his big brother he was dropping out of a detox clinic. >> don't leave buddy. please don't. i am going to rehab tomorrow. i am going to stay. sorry, dude. >> reporter: as he begged his brother to get help.

he couldn't help himself. >> okay. all right, bro. when he hung up the phone. jason was overcome with emotion. but not for long. >> stop it. red means go when you are shooting heroin. you know what i mean? >> reporter: over the next couple hours we watched as he nodded in and out. shot up again. snorted more pills. and saved some heroin for later the by then his best friend, mike duggan arrived. >> ready to dupe this? >> reporter: mike is a

recovering addict. clean seven years and was taking jason to rehab the next morning. >> like you will die if you don't get it this time the you know what i mean. really what it comes done to. >> the next morning, jason who has everdosed eight times and lived to tell about it began the next chapter of his life. >> hello, jason the we are so glad you are here. >> jason walked through the doors with five drugs in his system. tomorrow we'll show you jason's first tough week in detox, struggle to survive, the moment he is brat to tears after learning bad news who is also a heroin addict. demarco morgan, cbs news, new york. 't last forever. just like your mom, won't walk in on you forever. stephen! stephen! stephen! stephen! stephen! you see what i'm saying. acne won't last. but for now, let's be clear. clearasil works fast. and discover clearasil 5in1. one simple step to fight five signs of acne. and i can't wait to startlanta

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late last week we at cbs lost a family member, long time "60 minutes" correspondent, morley safer passed away. he was 84 and at his home. morley's career spanned 50 years. 46 were at "60 minutes" where he filed more than 900 stories. charlie rose looks back at his life and remarkable career. >> over here, uh1d medevac helicopter. >> reporter: he was a fearless reporter. >> i'm morley safer. those stories tonight on "60 minutes." who became a household name. under fire. here we are on board the good ship. or lost at sea. safer's stories were part

adventure. >> suppose you had a few dollars to get from paris to istanbul. this is how you would go. first-class on the orient express. >> reporter: part biting wit. >> it is a white rectangle. >> right. he is a minimal artist. >> i would say so. >> reporter: and all morley. >> one of the really great experiences. a sense of touching history is overwhelming. >> reporter: he first went to vietnam in 1965. >> it first appeared the marines had been sniped at and a few houses were made to pay. >> reporter: where his controversial stories showing u.s. marines burning the village, shocked the nation, and enraged the pentagon. >> this is what the war in vietnam is all about. >> reporter: the president thought he might be a communist. >> somebody explained to president johnson i was a canadian. an he said i knew there was something wrong with him. >> funny thing could have happened. >> reporter: in december, 1970, safer made his debut on "60 minutes."

i'm morley safer. over 46 years he explained the world as he saw it to millions. the quirky. >> why are you? >> the magnificent. >> benefactor spending an arm and a leg. >> is your wife here? >> boy did he have a way with women. >> you want to ask me to sing or whip it out for you? >> just whoop it out for me. >> i consider myself a hostage in the house of injustice. >> reporter: the story about the wrongful imprisonment of lanel jeter that safer was most proud. >> to make the difference, in effect, to save a life is, pretty hot stuff. >> reporter: an accomplished career, he reflected upon, on my show in 1993. any regrets about this career you have had here? >> oh, gosh. no. >> nothing. wouldn't have done anything different? >> i mean how can -- talk about a -- a lucky, blessed life as a

journalist. >> the "cbs overnight news" will be right back. ♪ 'cause you'll be in my heart ♪ ♪ yes, you'll be in my heart ♪ ♪ from this day on ♪ now and forevermore... narrator: if animals are our best friends, shouldn't we be theirs? visit your local shelter, adopt a pet. ♪ you'll be in my heart ♪ ♪ no matter what...

cbs cares. ♪ no matter what... is one of the elemental thprivileges of a free people. endowed, as our nation is, with abundant physical resources... ...and inspired as it should be to make those resources and opportunities available for the enjoyment of all... ...we approach reemployment with real hope of finding a better answer than we have now. narrator: donate to goodwill where your donations help fund job placement and training for people in your community.

we end tonight at the home of the eagles where one proud papa hatched a brood of them without shattering his nest egg. steve hartman found the story on the road. >> reporter: boston college one of the most prestigious private universities in the country. while there is certainly moneyen their trust fund. safe to say no one here feels any richer than the man in the mirror. >> i love being here. >> fred works overnights as a janitor at b.c. and this is the story of how he parlayed this relatively low paying job into a gold mine. thanks to a university policy that says if you work here, your kids can go here for free. assuming they're accepted. which is not easy.

and yet, back in 1998, his oldest daughter amy actually got in. >> she broke down crying. i broke down crying. and, we hugged each other. and there is pictures mine house of that. >> the acceptance letter we got. >> reporter: he keeps the letter on his wall. >> me and my wife struggled through years, seeing that made it worthwhile. >> reporter: it hangs here in the dining room next to the one his son got a few years later and his other son. today his house is pretty much wall papered in boston college acceptance letters. as all five of his kids got in. >> he really opened the opportunity for us. >> it was never a question if we would go to college or not. we will go to college. that's what he instilled in us. >> reporter: the kids say dad and mom didn't pressure them to succeed. >> they just set the expectation and provided the means. no matter what it took. >> you live for your kids. so they can have a better life than i had. >> reporter: fred insists his kids are all smarter than he is. but you have to wonder, over the past two decades. fred has taken boston college for nearly $700,000 worth of free tuition. which makes him no dummy. his last daughter, alicia graduates next week. a relief to the school, i am sure.

but not to fred, who says these college years flew by too fast. >> i was 44 at the time. now i am 62. it is like, wow. you know? >> reporter: are you glad it is over? >> no, no. no. >> reporter: when it comes to kids, watching them reach the top is definitely a reward. but fred says, climbing the ladder with them is even better. even if you have to vacuum the steps along the way. steve hartman, on the road, in boston.

captioning funded by cbs it's monday, may 23rd, 2016. this is the "cbs morning news." crews have retrieved wreckage and remains in the disappearance of egyptair flight 804 but not the black boxes from the doomed flight. this morning, the u.s. navy is joining the search. too close for comfort for hillary clinton. new polls show she's locked in a dead heat with donald trump in the race for the white house. and powerful performances at the billboard music awards, including a tribute to prince by madonna and stevie wonder. ♪