york. >> announcer: this is the "cbs overnight news." the race for the white house is on. former president donald trump took a victory lap after winning more than 60% of a straw poll vote at the conservative political action conference in maryland. now, some of his potentially biggest challengers were no-shows at the event as a republican primary field is starting to take shape. for the democrats president biden has yet to face any real competition from within his own party. but today on "face the nation" west virginia senator and often democratic dissenter joe manchin left the door open for challengers. >> are you going to endorse joe

biden if he runs for re-elen?>> , theotet who'svolved. let's we seeho all players are. >> mr. biden, who still has not officially announced his re-election campaign, visited selma, alabama today marking his case -- making his case, rather, for stronger voting rights. cbs's willie james inman starts us off from washington. willie, good evening. >> reporter: good evening, jericka. that's right. president biden visiting selma, alabama today to mark the 58th anniversary of bloody sunday. while there he called for legislation that would strengthen voting rights as we await an announcement on his potential re-election. ♪ >> reporter: in a historic visit to selma on sunday president biden walked across the edmund pettus bridge, where demonstrators fighting for voting rights were attacked by state troopers. the president again pressed for voting rights legislation, something he has not gotten across the finish line during the first half of his term. >> the right to vote, to have

counted, is the threshold of democracy. >> reporter: the visit comes as voting bloc ahead of a potential 2024 campaign announcement. on saturday former president donald trump headlined the annual cpac gathering of conservatives. >> we will evict joe biden from the white house. and we will liberate america from these villains and scoundrels once and for all. >> reporter: the former president saying he would stay in the race even if he were to be indicted in some of the investigations he faces. at least three major gop caidat hav jumitevinglorida gov desantis yet to officially make an announcement. but fearing a crowded field could help trump, former maryland governor larry hogan told "face the nation" he's decided against running for the republican nomination. >> you think by sitting out the field may be a little tighter? >> i hope so. >> it's a little harder for trump to get that nomination?

>> i sure hope so. >> reporter: while some candidates jump out others are jumping in. like author marianne williamson, who this weekend announced a long shot bid to challenge president biden for the democratic nomination. and jericka, tomorrow president biden will speak at an event hosted by the international firefighters association. that event could be seen as an indicator for his 2024 intentions because he spoke at the same event before announcing his bid in 2019. jericka? >> all right, willie, thank you. from washington tonight. another norfolk southern train derailed in ohio this weekend. it's been just one month since a separate train operated by the transportation company crashed and spilled hazardous material in a rural area. cbs's shanelle kaul joins us now with the latest on this new investigation. good evening, shanelle. >> reporter: good evening. and this is the company's second train derailment in just the last month, jericka.

we can tell you the previous one happened in east palestine, ohio, and what we saw there was toxic chemicals dumped into the water and soil. these recent incidents now prompting public and political scrutiny when it comes to rail safety across the country. this is the moment 20 cars peeled off the track near springfield, ohio. residents nearby were asked to briefly shelter in place. today local officials say there is no public risk. >> the ohio epa made the determination that it was safe. so there is no zards. both groundwater, air, nothing like that. >> reporter: saturday's accident follows a string of recent derailments across the country, including this fiery explosion in east palestine, ohio. one month later residents say they are still physically suffering even though the epa's testing shows the air and water are safe. it is the latest dramatic incident on the tracks that has

authorities and the public concerned. it feels like we're talking more about train derailments recently. are we seeing a spike in incidents? >> we are not. if you go back for the last five or six years, you'll see we're at a constant rate. >> reporter: and according to federal data rail remains the safest way to move hazardous materials. but after the east palestine disaster ohio senator sherrod brown would like to see rail safety standards improve. >> it's clear that their greed and incompetence always takes precedent over making their workers safe and making communities safe that they go through. >> reporter: last week brown and a bipartisan group of senators proposed new safety legislation for trains carrying hazardous materials. and state and federal officials now say cleanup in east palestine, ohio will take roughly two months, jericka. what we're seeing crews do there

is remove all the contaminated soil. then they will have to relay the track work there. we're also expected to learn a bit more about exactly what went wrong in east palestine later on this week. coming up on thursday, we will finally get to hear from the ceo of norfolk southern at a senate committee hearing on thursday. back to you. >> all right. a lot to cover there. thank you, shanelle. rescue efforts are under way right now in southern california. some residents there remain trapped in their homes after a week of heavy snowfall. crews across san bernardino county are working to plow through snow piles and get supplies to people stranded in mountain communities. in northern califonia dangerous road conditions and extreme winds forced three ski resorts to just shut down in lake tahoe today. and more than 30 inches fell near uc berkeley as the region braces for yet another chilly week. well, to greece now where another day of fiery protests continue.

thousands call for accountability and improved safety standards following a train wreck that killed 57 people last week. a demonstration in athens turned violent when a group hurled molotov cocktails at police. officials there responded saying -- using tear gas, rather, and stun grenades. the unrest forced greece's prime minister to issue an apology for the country's deadliest crash. the stationmaster working during the collision remains in custody. in tel aviv it was theth weekend of protests against plans to overhaul the legal system. police crashed with demonstrators who oppose israeli president benjamin -- prime minister benjamin netanyahu's plan to limit the supreme court's power. critics worry the proposed legislation could endanger civil liberties. today we learned prince harry and meghan have been invited to the coronation of king charles. a spokesperson for the couple confirmed they received an e-mail correspondence regarding the event, but it is not clear

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>> announcer: this is the "cbs overnight news." i'm jericka duncan in new york. thanks so much for staying with us. for the past six weeks the nation has been transfixed by the murder trial of once prominent south carolina lawyer alex murdaugh. murdaugh was convicted of killing his wife and son and sentenced to life in prison. he's currently held at what's called a reception center in columbia, south carolina, awaiting his transfer to one of the state's maximum security prisons. murdaugh's lawyers are vowing to appeal his conviction all the way to the supreme court if necessary.

nikki battiste has a look back at the trial. token fiery red hair, it was hard to believe the towering lean somber man who was paraded into this south carolina courtroom for the past six weeks and was bold enough to testify in his own defense -- >> i didn't shoot my wife or my son anytime. ever. >> reporter: is the same person as this heavyset jovial-looking dad, smiling next to his wife and two sons a few years ago. the question remains who is alex murdaugh? >> guilty verdict. >> reporter: the jury's answer on thursday, after just three hours of deliberations, he's a double murderer guilty of shooting to death his wife, maggie, and younger son, paul. at the family's estate in june of 2021. judge clifton newman, who has known murdaugh for years, told the jury he agreed with the verdict. >> it might not have been you. it might have been the monster you've become.

>> reporter: the irony in seeing murdaugh in a jail jumpsuit handcuffed is that the 54-year-old once tried cases in this very courtroom as a civil lawyer. he hailed from the murdaugh family dynasty, which wielded power and influence over south carolina's low country for a century. prosecutor creighton waters. >> it doesn't matter who your family is, how prominent you are. if you do wrong, if you break the law, if you murder then justice will be done in south carolina. >> reporter: from the get-go prosecutors painted murdaugh as a manipulator. >> do you recognize those documents? >> reporter: who conned the clients and friends out of millions of dollars for years. >> i can say i did wrong. i stole money that wasn't mine. and i shouldn't have done it. >> reporter: prosecutors argued he killed his wife and son in an attempt to distract from those alleged financial crimes. those crimes were about to be uncovered after paul murdaugh

was charged with boating under the influence in a crash in 2019 that killed 19-year-old mallory beach. >> i did not tell them that i wentth kennel.r: h where it all unraveled. murdaugh told police it was only after his wife and son were murdered that he went to the dog kennels on his estate where the shooting happened. he claimed he found the bodies later, after visiting his ill mother. >> i knew they had been down there before i left to go to my mom's. >> reporter: but prosecutors had a mountain of circumstantial evidence centered on his cell phone along with those of maggie and paul. cell records led them to believe maggie and paul were shot to death at 8:49 p.m. that's when their phones locked for the final time. prosecutor waters zeroed in on four minutes just after that, when murdaugh's phone logged 283 steps. >> so what were you so busy doing? going to the bathroom? >> no, i don't -- i don't think that i -- >> get on a treadmill? >> no, i didn't get on a

treadmill. >> jog in place? >> no. i didn't jog in place. >> jumping jacks? >> no, sir, i did not do jumping jacks. >> reporter: but it was this video captured on paul's cell phone at 8:44:00 p.m., minutes before investigators believe the murders happened, that caught murdaugh in a boldfaced lie. witnesses testified that voice was alex. ultimately, he admitted he'd lied. >> were you in fact at the kennels at 8:44 p.m. on the night maggie and paul were murdered? >> i was. >> did you continue lying after that night, did you not? >> once i lied, i continued to lie. yes, sir. >> why? >> you know, what a tangled web we weave. but once i told the lie, i mean, i told my family, i had to keep lying. >> reporter: murdaugh blamed his lies on a 20-year secret opioid

addiction. he says he took up to 60 pills a day. it was murdaugh's own choice to testify. prosecutor waters believes he was his own worst enemy. >> do you think alex's testifying helped you? >> oh, absolutely. i started out by getting him talking. i intentionally left pauses because he couldn't help himself. he would start talking again. and the more he did that the more he looked that jury in the eye, the more he kept hanging himself and kept telling lies. >> reporter: a portrait of murdaugh's grandfather in his day a powerful attorney hung in the courthouse until the judge took it down for the trial. now the enduring portrait of alex murdaugh might be this one. that fiery red hair shaved off by jailers. preparing to spend the rest of his life in prison. >> that again was nikki battiste reporting. you're watching the "cbs overnight news."

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well, people of a certain age will remember the as t birth o rapsic. it or the decades and even gave rise to something known as the human beatbox. dougie fresh is considered the originator of the human beatbox genre, which these days has gone mainstream. luke burbank explains. ♪ >> reporter: just so you know, there's nothing wrong with your tv. ♪ what you're seeing and hearing is coming from ordinary human beings with an extraordinary talent. beatboxing is what it's called. and kayla malady is one of the best at it in the world.

>> beatboxing is just talking, but you're articulating the letters of your speech. right? >> reporter: malady started beatboxing when she was just 8 years old. and now at the age of 30 co-organizes the american beatbox championships. ♪ which last year gathered people from all over the world in atlantic city, new jersey to compete and appreciate this sometimes misunderstood art form. that uses the human voice, lungs and mouth as the instrument. malady also provides the beats and rhythm -- ♪ because i'm such a good doggie ♪ ♪ i've made a lot of weird choices in my life ♪ for lin manuel miranda's rapping

improv show, freestyle love supreme. first on broadway and then in places like this one, the venetian in las vegas, where the show recently wrapped up a residency. can you talk about some of the misconceptions around beatboxing? if you you meet someone in the airport and you say what do you do and you say professional beatboxer? >> people think that beatboxing is a party trick, that it's a gimmick, but beatboxing is one of the most incredible art forms of all time. >> reporter: an art form malady says anyone can actually learn. >> why don't you try? >> reporter: even a middle-aged correspondent for "sunday morning." >> so say pancake. >> pancake. >> say party. >> party. >> easy, right? >> so the same way you say p, p, p. you put a little more pressure on the side and it backs a kick drum sound. say taco. >> taco. >> tuesday. >> tuesday. >> easy. the third one is a snare drum. cake. >> cake. >> kangaroo. >> kangaroo. >> you're already doing it. so put it together. p, t, k.

♪ ♪ hey ♪ ♪ see? you're ready. that's it. >> my daughter is so mortified right now. i'm sorry, addie. >> you know what? la di da-di we like to party. >> reporter: beatboxing started in new york city in the 198 o's just as hip-hop itself was emerging. >> i'm telling you it's a whole other level of communication. beatbox i think vibrates at a completely different frequency than rap. like you feel it. >> reporter: dougie fresh is known as the original human beatbox. he says he started making the sounds with his mouth after his brooklyn high school canceled its music program due to lack of funding. >> and i didn't have no more trumpet. but i was still doing all of the exercises. even when i do the beatbox now, i'll -- i move my hands as if

i'm playing the trumpet. sxrrp . >> reporter: and he'd practice as he walked home from school. ♪ >> yeah. >> music is just out in your neighborhood and you're just playing along with it? >> hearing the baseline. doom, doom, doom, doom. doom, doom, doom. so you start humming it and you say okay, let me put the beat to that. ♪ now let me put something else to that. ♪ now let me add something else to that. ♪ you start going crazy with it now. ♪ >> reporter: around this same time the legendary dj grandmaster flash had been using a beatbox machine. >> so this is what i used to do when i jumped off my turntable. >> reporter: that would mimic drums and snares. inspiring dougie's friends to name this new sound. >> you should call that the

human beatbox because it was similar to what grandmaster flash was doing but it wasn't a machine, it was me. >> reporter: as with so many things, the internet has radically changed the world of beatboxing, connecting people from all over the world with this very american sound. could you ever have imagined where this has all led? like this thing that you were doing because you didn't have a trumpet and now they have championships of people doing it performatively. >> it's unbelievable, man. it's unbelievable. and it's a beautiful thing. >> reporter: for kayla malady, the impact has been profound. from a musical technique that some might dismiss as a party trick she says she's found her voice. >> switch. >> i think it's a wonderful tool for self-expression. and i'm saying that as someone who truly was terrified to use my voice. like if you tried to get me soto sing no way, i would clam up,

i'd get so nervous. so i know if i could do it anybody can do it. it's changed my life in a really beautiful way. ♪ >> what a great pi e.

some people may look forward to retiring to the country if you're so lucky or to a smaller home. with more focus on your hobbies and grandkids perhaps. but others see it as a golden opportunity to go back to school. nancy chen has one retiree's story. >> hello, my beautiful friends. >> reporter: known as grandma great, to her 2 million-plus tiktok followers -- >> it's a beautiful day on campus. >> reporter: sharon barber is a proud senior at utah's weber state university. >> this is where you go to school. >> it is. >> reporter: decades ago the now 79-year-old put school on pause and raised a family. 16 grandchildren and eight great

grandchildren later, after retiring as a substitute teacher, where else to go but back to class? >> it was scary. my textbooks, i was like what does this mean? i don't even know. >> reporter: barbara, however, quickly not only excelled in the classroom but also on tiktok. >> i'm doing some homework. >> reporter: sharing her own lessons to followers. >> i have 2.2 million tiktok grandchildren. >> how does that feel to say out loud? >> it feels good. >> i'm talking to you. >> i feel i'm making a connection with people. >> reporter: that connection on campus as well. >> there isn't a certain age to go back to school. and she proved that. >> it doesn't matter how old you are. just do your best. >> reporter: a standout student showing what it takes to be great. nancy chen, cbs news, ogden, utah.

>> that is the "cbs overnight news" for this monday. make it a good one. reporting from the cbs broadcast center in new yor city, i'm jericka duncan. ♪ t"cbs newsh." pe manyf thestts, aeaths of7 stationmaster has now been charged with negligent homicide and is in jail. the 59-year-old allegedly directed the two trains traveling in opposite directions last week in greece onto the same track. he spent 7 1/2 hours sundayday testifying about the events. republican senator josh hawley is expected to introduce legislation today to ban members of congress from owning or trading individual stocks. lawmakers in both parties have made similar pushes but have made little headway. and at the box office it's a knockout for "creed 3." the michael be jordan-directed

flick earned nearly $60 million in ticket sales. for more download the cbs news app on your cell phone or connected tv. i'm matt pieper, cbs news, new . the race is on. >> i am your warrior. i am your justice. >> former president donald trump doubling down on his 2024 election bid and addressing his long-running legal issues. former maryland governor republican larry hogan makes up his mind about a potential bid. >> toughest decision of your political career? >> absolutely. toughest decision i ever made. also, a new derailment for the second time in a month. a norfolk southern freight train comes off the tracks in ohio. at least 20 containers flip the rails outside of dayton. >> it was safe, so there is no hazard. and moving out. big states like california and new york are seeing people

packing up. >> growth of almost 100%. >> we'll tell you why. also, chris rock claps back nearly a year after millions around the world watched the infamous slap by will smith at the oscars. rock reacts. >> i'm not a victim, baby! and later, echoes from the past. musical instruments saved and restored play sounds of survival. >> my grandfather didn't want to see the instruments being broken, destroyed or lost. >> announcer: this is the "cbs overnight news." the race for the white house is on. former president donald trump took a victory lap after winning more than 60% of a straw poll vote at the conservative political action conference in maryland. now, some of his potentially biggest challengers were no-shows at the event as the republican primary field is

starting to take shape. for the democrats president biden has yet to face any real competition from within his own party. but today on "face the nation" west virginia senator and often democratic dissenter joe manchin left the door open for challengers. >> are you going to endorse joe biden if he runs for re-election? >> no. the bottom line is let's see who's involved. let's wait until we see who all the players are. >> mr. biden, who still has not officially announced his re-election campaign, visited selma today marking his case -- making his case rather for stronger voting rights. cbs's willie james inman starts us off from washington. willie, good evening. >> reporter: good evening, jericka. that's right. president biden visiting selma, alabama today to mark the 58th anniversary of bloody sunday. while there he called for legislation that would strengthen voting rights. as we await an announcement on his potential re-election. ♪ >> reporter: in a historic visit to selma on sunday president

biden walked across the edmund pettus bridge where demonstrators fighting for voting rights were attacked by state troopers. the president again pressed for voting rights legislation. something he has not gotten across the finish line during the first half of his term. >> the right to vote, to have your vote counted is the threshold of democracy.r: the v he looks to reassure a key voting bloc ahead of a potential 2024 campaign announcement. on saturday former president donald trump headlined the annual cpac gathering of conservatives. >> we will evict joe biden from the white house. and we will liberate america from these villains and scoundrels once and for all. >> reporter: the former president saying he would stay in the race even if he were to be indicted in some of the investigations he faces. at least three major gop candidates have jumped into the race so far, with several including florida governor ron desantis yet to officially make an announcement.

but fearing a crowded field could help trump, former maryland governor larry hogan told "face the nation" he's decided against running for the republican nomination. >> you think by sitting out the field may be a little tighter? >> i hope so. >> a little harder for trump to get that nomination? >> i sure hope so. >> reporter: while some candidates jump out, others are jumping in. like author marianne williamson who this weekend announced a long shot bid to challenge president biden for the democratic nomination. and jericka, tomorrow president biden will speak at an event hosted by the international firefighters association. that event could be seen as an indicator for his 2024 intentions because he spoke at the same event before announcing his bid in 2019. jericka? >> all right, willie, thank you from washington tonight. another norfolk southern train derailed in ohio this weekend. it's been just one month since a separate train operated by the transportation company crashed and spilled hazardous material

in a rural area. cbs's shanelle kaul joins us now with the latest on this new investigation. good evening, shanelle. >> reporter: good evening. and this is the company's second train derailment in just the last month, jericka. we can tell you the previous one happened in east palestine, ohio and what we saw there was toxic chemicals dumped into the water and soil. these recent incidents now prompting public and political scrutiny when it comes to rail safety across the country. this is the moment 20 cars peeled off the track near springfield, ohio. residents nearby were asked to briefly shelter in place. today local officials say there is no public risk. >> the ohio epa made the determination it was safe, so there is no hazard, both groundwater, air, nothing like that. >> reporter: saturday's accident falls a string of recent derailments across the country including this fiery explosion

in east palestine, ohio. one month later residents say they are still physically suffering, even though the epa's testing shows the air and water are safe. it is the latest dramatic incident on the tracks that has authorities and the public concerned. >> it feels like we're talking more about train derailments recently. are we seeing a spike in incident? >> we are not. if you go back for the last five or six years you'll see we're at a constant rate. >> reporter: and according to federal data, rail remains the safest way to move hazardous materials. but after the east palestine disaster ohio senator sherrod brown would like to see rail safety standards improve. >> it's clear that their greed and incompetence always takes precedent over making their workers safe and making communities safe that they go through. >> reporter: last week brown and a bipartisan group of senators proposed new safety legislation

for trains carrying hazardous materials. and state and federal officials now say cleanup in east palestine, ohio will take roughly two months, jericka. what we're seeing crews do there is remove all the contaminated soil. then they will have to relay the track work there. we're also expected to learn a bit more about exactly what went wrong in east palestine later on this week. coming up on thursday we will finally get to hear from the ceo of norfolk southern at a senate committee hearing on thursday. back to you. >> all right. a lot to cover there. thank you, shanelle. rescue efforts are under way right now in southern california. some residents there remain trapped in their homes after a week of heavy snowfall. crews across san bernardino county are working to plow through snow piles and get supplies to people stranded in mountain communities. in northern california dangerous road conditions and extreme winds forced three ski resorts

to just shut down in lake tahoe today. and more than 30 inches fell near uc berkeley as the region braces for yet another chilly week. there's a lot more news ahead on the "cbs ov

>> announcer: this is the "cbs overnight news." to greece now, where another day of fiery protests continue. thousands called for accountability and improved safety standards following a train wreck that killed 57 people last week. a demonstration in athens turned violent when a group hurled molotov cocktails at police. officials there responded saying that -- using tear gas, rather, and stun grenades. the unrest forced greece's prime minister to issue an apology for the country's deadliest crash. the stationmaster working during the collision remains in custody.

in tel aviv it was the ninth weekend of protests against plans to overhaul the legal system. police clashed with demonstrators who oppose israeli president benjamin -- prime minister benjamin netanyahu's plan to limit the supreme court's power. critics worry the proposed legislation could endanger civil liberties. well, americans are leaving california and new york in droves. new census data revealed half a million people left california during the covid pandemic. cbs's joy benedict joins me now to explain the reason behind the mass exodus. good evening, joy. >> reporter: good evening, jericka. that's right. believe it or not, as you mentioned, folks are packing up. they are leaving, making these big moves, saying good-bye to cities like here in los angeles, new york and chicago. and the main reason why is money. californians are loading up and moving out. as the appeal of the golden

state seems to be tarnishing, at least for some. >> it's just not sustainable in terms of cost of leaving. >> reporter: preston lee is leaving los angeles for austin, texas. >> it's incomparable. the house that we bought was 700,000 for a four-bedroom, 4 1/2 bathroom, 4,000 square feet. you can't get an apartment for that here. >> reporter: more people are exiting california than any other state. new york is second. manyf those leavare now calling florida and texas home. kafir cohen owns a moving company. how much more business have you seen? >> i would say there was a growth of almost 100%. so it's -- our job was like almost double itself. >> reporter: as for why they're saying good-bye, experts say it's a combination of high housing costs, schools, the ability to work remotely, and taxes. >> i always say that you need to

make celebrity money in order to live here comfortably. >> reporter: now, california is still attracting people, new people. the issue is they're moving here as renters and then leaving when they decide to buy. jericka? >> not surprised that money is the issue here. joy benedict, thank you. chris rock is finally speaking out. it was nearly a year ago that actor will smith slapped rock at the oscars after rock made a joke about smith's wife, jada pinkett smith. spoiler alert, in his new stand-up special rock blames the couple's reported marital issues for triggering smith's reaction. the smiths -- >> everybody that really knows knows i had nothing to do with that [ bleep ]. i didn't have any entanglements. she hurt him way more than he hurt me. okay? >> well, the smiths have not officially or publicly commented on the stand-up special. today we learned prince harry and meghan have been

invited to the coronation of king charles. a spokesperson for the couple confirms they received an e-mail correspondence regarding the event. but it is not clear if they will attend. prince harry and meghan's relationship with the king has been a strained one since they stepped down from royal duties in 2020. straight ahead, the elevated training helping some flight attendants deal with new demands and obstacles. plus, people travel from around the world to this lake of wonders for a spectacular swim with jellyfish.

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more menthol per drop*, and the powerful rush of vicks vapors for fast-acting relief you can feel. vicks vapocool drops. fast relief you can feel. right now flight attendants are in high demand as air travel approaches pre-pandemic levels, and those who are hired can expect special training to deal with the heightened pressures of the job. cbs's janet shamlian shows us what's happening behind the scenes before flight attendants hit the skies. >> release seat belt! get out! leave everything! >> reporter: it's preparation they'll likely never have to use. >> come this way! jump and slide! >> reporter: but this is part of the rigorous schooling all future united flight attendants go through at the airline's newly opened 56,000-square-foot training center in houston. it's six weeks of instruction,

drills and testing. the airline aims to hire 4,000 flight attendants this year. a training reinforced as often as once a year. >> this is our door training room. >> reporter: michelle siegel johnson is united's vice president of in-flight services. >> you have a lot of positions to fill. >> yes. >> how tough is that? >> it's evident by how many people still want to be a flight attendant. >> reporter: the pandemic saw thousands of flight attendants who either quit, were furloughed or took a buyout. then as travel rebounded airlines were short staffed. and all are now hiring. trainees like kylie streck. >> what was your last line of work? >> i was a firefighter. >> do you think this will be less stressful? >> not at all. >> reporter: a model of a plane's fuselage in the new aquatic center has trainees practicing for water landing. and there's the everyday duties of food and beverage service. it's not just service and safety. a big part of training focuses on de-escalation techniques. >> excuse me. >> reporter: teams run through potential scenarios. >> why are we on a delay? i don't understand.

>> i apologize. i sincerely apologize. >> reporter: the median ay for flight attendants nationwide is just under $62,000 a year. new hires earn less. but attracted to the perks of travel, trainees like kylie streck taking the plunge. >> how does that compare to firefighting? >> man. it was a rush. it was a nice little rush. >> reporter: elevating training for the changing challenges of ensuring safety in the skies. janet shamlian, cbs news, houston. still ahead, we'll take you to a tiny island with millions of unique underwater of unique underwater attractions. ♪ ♪ ♪♪ voltaren. the joy of movement. ♪♪ this cough. [sfx: coughs] this'll help. vicks vaporub? vicks vaporub's ...medicated vapors go straight to the source of your cough...

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be fearless with olay hyaluronic body wash and body lotion. roughly 18,000 people live on the tiny western pacific island of palau. but it's the millions of inhabitants under the sea that have made this island a popular destination. cbs's lee cowan takes us swimming with jellyfish. >> reporter: there's a story to be told of a place hidden in the rock islands of the pacific nation of palau. about lakes that harbor sea creatures locked in isolation since the last ice age. >> hi. so nice to meet you. i'm lee. >> reporter: marine lake researcher gerta amor studies those lakes for a living. this is her office. there are more than 50 marine lakes all throughout palau, but out of all those incredibly unique lakes there's actually only one you can visit. here it is.

oh, wow. surrounded by mangrove trees, we were warned it's home to more than a few saltwater crocodiles. but those weren't what we came to see. these were. millions of graceful gelatinous globs, some golden, some as translucent as a moonbeam, found nowhere else in the world. welcome to palau's jellyfish lake. why here in this lake? >> way back maybe 10, 20 thousand years ago they got trapped in here and through time they evolved to live in such environment. >> reporter: these jellies get their energy much the way plants do. from the sun. they migrate with it. east in the morning, west in the afternoon, every day. >> it's only in this lake that they migrate. and why only in this lake? i don't know. >> reporter: in 2000 scientists estimated there were more than 30 million jellies just in this one lake.

as thick as cauliflower soup. 7 lln. ist the s of ther pbu we'rgoto get>>orte c s producer, didn't really mean to follow me in. he led the way. camera and all. [ laughter ] no harm done. in the middle of the lake in the middle of palau. there's crocodiles over there. there's crocodiles there. there's jellyfish somewhere down there. what could go wrong? >> reporter: the inhabitants of jellyfish lake, we're told, are benign. their sting would cause no more than mild discomfort, if we felt it at all. and it's impossible down here to maintain any personal space. they're everywhere.

but any fear is soon replaced with an unexpected calm. >> it's the most relaxing feeling ever. >> reporter: we had this lake almost to ourselves except for erin yapez, who came all the way from nashville for the experience. >> i would normally be scared, but they don't sting me. you know? i just touch them. >> reporter: after about 45 feet the lake turns into a layer of pink bacteria, and then below that is a poisonous layer of dissolved hydrogen sulfide gas. >> it can kill you. yeah. >> reporter: it is a very primal place. you come away with the feeling that sure, these jellies may not have a brain but they may actually be smarter than we think. after all, they live a life far more orderly and far more peaceful than ours. lee cowan, cbs news, in jellyfish lake.

>> just glad to see those crocodiles stayed away. well, next, strings of hope and history. ♪

finally tonight, we're connecting you to history through music. cbs's manuel bojorquez shows us how instruments that were saved and restored after world war ii are having an impact on today's generation. >> reporter: at the national world war ii museum in new orleans -- >> that's pretty cool. >> reporter: -- an unexpected sight. four violins. given new life by avshalom weinstein and his father amnon. >> we are repairing and restoring all these instruments because we think it's important for the people to hear the sound of what those people heard during the war. >> reporter: for weinstein it's personal. his grandparents lost nearly their entire family in the holocaust. still, his grandfather, a violin repairman in israel, started to

save what no one wanted. german-made instruments. why did he take them in? >> because my grandfather didn't want to see the instruments being broken, destroyed or lost. ♪ >> reporter: through their program, violins of hope, the instruments are played all over the world, reclaiming them from their dark past. some musicians at concentration camps were forced to play as their fellow jews were sent to their deaths. on this night a restored violin sang once again with the louisiana philharmonic orchestra. violinist philippe quint lost family during the holocaust. >> what a great way for future generations in terms of education, in terms of never repeating something like this again. ♪ >> reporter: here the past

merges with the present. >> that is the "cbs overnight news" for this monday. make it a good one. reporting from the cbs broadcast center in new york city, i'm jericka duncan. this is "cbs news flash." i'm matt pieper in new york. following the deaths of 57 people, many of them students, a stationmaster has now been charged with negligent homicide and is in jail. the 59-year-old allegedly directed the two trains traveling in opposite directions last week in greece onto the same track. he spent 7 1/2 hours sunday testifying about the events. republican senator josor jo hawley is expected to introduce legislation today to ban members of congress from owning or trading individual stocks. lawmakers in both parties have made similar pushes but have made little headway. and at the box office it's a knockout for "creed 3." the michael b. jordan-directed flick earned nearly $60 llion

in ticket sales. for more download the cbs news app on your cell phone or connected tv. i'm matt pieper, cbs news, new york. it's monday, march 6th, 2023. this is the "cbs morning news." road to the white house. political leaders criss-cross the country giving a preview of the 2024 election. we'll look at the campaign-style attacks and who's not jumping into the race. wild weather. tornadoes and storms pound the south killing at least 12 people as more snow falls in california. rail safety questions. another train owned by nor -- norfolk southern derails in ohio. now lawmakers are pushing for more regulations on the tracks. good morning and good to be with you. i'm anne-marie green