are welcoming the asylum seekers. >> we will never cower, ever. we'll welcome people. we always have. we always will. >> reporter: church groups here in sacramento are temporarily housing the asylum seekers. in recent tweets, california's governor gavin newsom called desantis pathetic and threatened to charge him with kidnapping. he also said california will lead with inclusive and just policies. norah. >> elise preston, thank you very much. we turn now to a possible game-changer when it comes to the fight against breast cancer. cbs's janet shamlian reports on a new study which shows in the age of ai, technology is better at predicting a patient's risk than current methods. >> reporter: it's cutting-edge research. artificial intelligence is significantly better at predicting a patient's cancer risk according to a new study out today. >> the role of ai in predicting

breast cancer risk is definitely in our future. >> reporter: dr. pauline your vath is a breast oncologist with houston methodist. >> assessing a person's risk, the ai can do it probably a lot cheaper and faster as well. >> reporter: current clinical models use a patient's age, family history, and information like breast density to determine risk. artificial intelligence is able to get biomarkers, more information from the mammogram, helping doctors make personalized recommendations. the kaiser permanente research analyzed the mammograms of more than 18,000 women. ai took just seconds to determine their five-year breast cancer risk, and it was up to 25% more accurate when combined with personal history. the american cancer society reports this year alone, doctors will diagnose almost 300,000 cases of breast cancer, more than 43,000 u.s. women will die of the disease. the rate of breast cancer in women ages 25 to 39 has

increased 32% since 2009. >> i think it ends up being a very valuable tool in our arsenal. >> reporter: the doctor says younger women could benefit from this technology, a predictor of when they should get screened, which could save lives. and here at houston methodist, they are already using ai to help determine breast cancer risk. while it's not widespread, its use is growing, and the technology could be especially helpful in areas that lack advanced medical resources. norah. >> it is such an important story. janet shamlian, thank you so much. well, tonight 75 million americans from new england to the midwest and as far south as the carolinas are under air quality alerts. that's because smoke from wildfires in eastern canada is causing dangerous pollution in the u.s. you can actually see how dense that smoke is in this satellite image in new york city alerts are expected to remain in place through friday, meaning you should limit your time outdoors. we want to turn now to some

breaking news back here at home. multiple people have been shot outside a high school graduation ceremony in richmond, virginia, this afternoon. our cbs richmond affiliate, wtvr, as obtained cell phone video from the scene. we are hearing at least five victims have been shot, including three with life-threatening injuries. the shooting happened at a theater on the campus of viginia commonwealth university, which went on lockdown. police are on the scene. our affiliate reports that two suspects are in custody. now to part two in our series on the growing child care crisis in america. in addition to rising costs, more than half of the country lives in a child care desert, where there is little or no access to child care. cbs's meg oliver shows us how two mothers are trying to solve the problem. >> when this day care shut down, what went through your minds? >> what are we going to do? who's going to take care of our kids? >> how is this going to affect

my job? can i keep my job? >> i remember calling 12 day cares one day and having all of them be like, wait list, wait list, a year and a half, a year and a half, maybe a year. >> reporter: in wisconsin, finding child care is a hardship. there's one spot available for every three kids. that's considered a child care desert, and 51% of the country lives in one. >> so i actually did lose my job. sorry. i'm emotional. >> that's okay. >> so, yeah, an important impact on my performance too much last year. >> could you keep up what you were doing, taking care of your kids and working? >> it was hard. like i put my family first, and so my job obviously got repercussions. >> reporter: here in this county, population close to 200,000, more than 1,200 children are on a wait list for child care and many centers have stopped using a wait list due to the extensive wait. last november when this day care shut down, full-time working

moms virginia moss and tiffany simon took action. >> we had dinner together two nights in a row, and we're just running numbers and figuring out what's going to make sense. and we felt like we could do it. >> hi. >> reporter: they bought the building, and within two months, the physical therapist and data consultant opened joyful beginnings academy, hiring management, 20 day care workers, and enrolling 75 kids. >> can you do that? >> reporter: day care workers here can earn up to $17 an hour compared to the state average, between $11 and $13. >> we've seen both sides. so now we can go and educate that this is a problem and we need to do something about it. >> reporter: it's a small fix in a desperate area. their day care already has a wait list of nearly 100 kids. >> if virginia and tiffany didn't step in and reopen this day care facility, where would you all be? >> i probably would have had to turn around and sell my home,

move in with my family. >> really? >> yeah. >> and one of us would have probably left our jobs. >> what does this child care facility mean to your community? >> i think it's bonded our community together, especially living in a neighborhood with a lot of little kids. we all kind of went through this struggle together. >> reporter: an american crisis affecting too many families. affecting too many families. meg oliver, yo! you gotta try this new axe. it's the fine fragrance g.o.a.t.! ♪ ♪ the new axe fine fragrance collection. smell finer than the finest fragrances with the g.o.a.t.

if you've had sensitivity, those zingers can really cause some of that jolting pain. there is one great solution out there with sensodyne. it creates a protective barrier, and now they get to feel like, 'oh, this is a product that actually works. ♪ well, today former new

jersey governor chris christie filed the paperwork to run for the white house. cbs's caitlin huey-burns is with christie as he kicks off his campaign tonight in new hampshire, where he is set to make a case against gop front-runner donald trump. >> would you like a line by line on what i did today? >> reporter: former new jersey governor chris christie built a fighter willing to tell it like it is, and in launching his second presidential campaign, he's taking that fight to former president donald trump and testing whether there are enough republican voters willing to listen. >> you have to be fearless because he will come back and right at you. >> thank you. >> reporter: it's a far cry from 2016, when he dropped his first presidential bid after dismal showings in iowa and new hampshire, becoming a key ally and adviser to trump. >> i am proud to be here to endorse donald trump for president of the united states. >> reporter: christie prepped him for debates and, for a time, led his transition team.

but the chaotic presidency that followed and then false claims of election fraud turned christie into a fervent never-trumper. white house, behind the seal of the president, and told us the election was stolen. >> reporter: christie is now betting new hampshire's independent voters are also willing to get off that train. >> i kind of like the guy, but i hope that he can get in there. but there's so many in there right now. >> reporter: an expanded field may stand to benefit trump, who leads his closest rival, florida governor ron desantis, by double digits. former vice president mike pence will launch his own campaign for president tomorrow in iowa. and as for christie, the next challenge is meeting the donor and polling requirements for the debate stage, where he's vowed to go after donald trump. also among the criteria, a pledge to support the eventual nominee, and neither christie nor trump have said whether they'll sign it. norah. >> caitlin huey-burns, thank

you. the "cbs overnight news" will be right back. do you struggle with occasional nerve aches in your hands or feet? try nervive nerve relief from the world's number one nerve care company. nervive contains ala to relieve nerve aches, and b-complex vitamins to fortify healthy nerves. try nervive. and, try nervive pain relieving roll-on. yo! you gotta try this new axe. it's the fine fragrance g.o.a.t.! ♪ ♪ the new axe fine fragrance collection. smell finer than the finest fragrances with the g.o.a.t. if you've had sensitivity, those zingers can really cause some of that jolting pain. there is one great solution out there with sensodyne. it creates a protective barrier, and now they get to feel like, 'oh, this is a product that actually works. ♪ want luxury hair repair that doesn't cost $50? pantene's pro-vitamin formula repairs hair. as well as the leading luxury bonding treatment. for softness and resilience, without the price tag.

if you know... you know it's pantene. we've seen what you would do for a klondike®, so we're raising bar. now we want to see what your hometown would do for a klondike®, so get together, and go for the bar, sandwich, or cone. go for the glory! ♪ yo! you gotta try this new axe. it's the fine fragrance g.o.a.t.! ♪ ♪ the new axe fine fragrance collection. smell finer than the finest fragrances with the g.o.a.t. it was a dramatic day in court for prince harry. historic too as he was the first british royal to testify in court in more than 130 years. the 38-year-old prince is suing the publisher of multiple british tabloids, accusing reporters of illegally hacking his phone back when he was a teenager and repeatedly trying to break up his relationships, including with chelsy davy.

a lawyer for the publisher called the prince's accusations of illegal activity speculation. safety regulators are sounding the (male) there are many voices in today's world. everyone is voicing their opinions about everything, and jesus is no exception to that. what if there was a clear voice telling you exactly who jesus is? (male announcer) join dr. david jeremiah as he teaches who jesus is and what that means for your life. tune in to dr. jeremiah's new series, "christ above all", on the next "turning point", right here on this station.

tonight we have an important consumer alert. two more deaths have been linked to a baby pillow lounger that was recalled nearly two years ago. regulators are sounding the lonow linked to the suffocation deaths of ten babies. the agency is also calling on meta to ban the sale of these loungers on facebook marketplace, saying it's been requesting to have the listings taken down about a thousand times a month. well, a graduation surprise. that's next.

finally tonight, you may need the tissues for this one. a military dad traveled more than 30 hours from his deployment in the middle east to watch his daughter walk across the stage at her college graduation. navy petty officer second class douglas hernandez traveled from dubai to las vegas to surprise his little girl, pamela. he had been deployed since july of last year. the two shared an emotional hug as the crowd cheered that beautiful moment. it's a reminder how much people who serve our country sacrifice. and that's the overnight news for this wednesday. for some of you, the news continues. for others, check back later for "cbs mornings." and remember you can follow us online anytime at cbsnews.com. reporting from here in the

nation's capital, i'm norah o'donnell. this is "cbs news flash." i'm shanelle kaul in new york. at least two people were killed in a shooting at a high school graduation in richmond, virginia. five others were also injured. a suspect is in custody. a woman identified as susan lorch is under arrest after she allegedly shot and killed her neighbor last friday in ocala, florida. the marion county sheriff's office says ajaka owens was shot through the suspect's door after knocking on it following a dispute involving owens' kids. and damar hamlin is making a comeback. he took part in his first off-season practice with the buffalo bills tuesday since suffering cardiac arrest on the field in january. for more, download the cbs

news app on your cell phone or connected tv. i'm shanelle kaul, cbs news, new york. >> announcer: this is the "cbs overnight news." we want to begin tonight with the growing fears of an environmental catastrophe unfolding in ukraine. this is not because of the ongoing bombs and bullets raining down on citizens, but instead the cascading floodwaters that are threatening thousands of people after a critical dam on the front lines was sabotaged. we are learning that those floodwaters are expected to peak in the coming hours. ukrainian president zelenskyy blamed russian terrorists for blowing up the soviet-era dam, calling it the largest manmade environmental disaster in europe in decades.

take a look at these stunning satellite photos from before and then after the explosion. look at all that water. it is rushing now towards cities and towns. streets were turned into lakes and rivers, and homes and businesses swept away. and it comes just as ukraine is beginning its long-planned counteroffensive to retake territory held by russia. cbs's debora patta is going to start us off tonight with all the new developments. >> reporter: the blast smashed through the dam wall, causing a to or surging as one section dy towards the southern city of kherson, less than 50 miles away. homes partially submerged, some even floating away. and once fertile agricultural ground now a soggy wasteland. the flooding has forced the evacuation of thousands of people. some fled under fire. others scrambled to protect their animals, like tatiana, who

frantically searched for her pets, begging one dog not to drown and searching for others in her waterlogged home. the dam holds back a reservoir containing about the same volume of water as the great salt lake in utah and is important for the safe running of the zaporizhzhia nuclear power plant, which is also kremlin-controlled. the united nations atomic energy body says that plant is safe for now. but ukraine is furious. from official outrage in kyiv with president zelenskyy accusing russia of a brutal war crime to anger and loathing in kherson. "we were under occupation for nine months," said this woman. "now we have been flooded by these wretched occupiers." the kremlin denies any involvement. what both sides can agree on is that this has triggered an environmental disaster, endangering crops, drinking

water, and an entire ecosystem. and a humanitarian crisis for the people of kherson, who endured months of russian fire only to be chased from their homes by rising water. white house national security council spokesman john kirby says they're assessing reports that russia is responsible for the blast. and while they cannot say conclusively what happened yet, norah, what is clear is that the damage to the ukrainian people and the region will be significant. >> devastating. debora patta, thank you. now to a surprise move in the world of professional golf. the pga tour and european tour today announced a merger with controversial saudi-backed liv golf. cbs's manuel bojorquez reports the agreement follows months of lawsuits and suspensions that have teed off some of the game's biggest names. >> reporter: the stunning

announcement comes after a bitter two years, which saw saudi-backed liv golf poach some of the sport's biggest names with lucrative deals as the pga fought back, suspending those players from pga events. david due sec is a senior writer at golf week. >> i don't think there's any way you can look at this and say the liv golfers weren't the winners. they obviously won on this. >> reporter: among the biggest names to join liv golf, hall of famer phil mickelson tweeted, awesome day today. pga champs tiger woods and rory mcilroy have not commented on today's news but have been vocal critics of golfers who joined liv. >> my dad said to me a long time ago, once you make your bed, you lie in it. and they've made their bed. so, you know, that's their decision, and they have to live with that. >> reporter: liv golf is seen by many as a saudi attempt at sports washing, essentially building a worldwide sports brand that distracts from the country's record of human rights abuses -- the murder of "washington post" columnist jamal khashoggi and an fbi

report detailing saudi ties to 9/11. this was pga commissioner jay monahan last year. >> and i would ask, you know, any player that has left or any player that would ever consider leaving, have you ever had to apologize for being a member of r: tay he struck a different tone. >> we've recognized that together, we can have a far greater impact on this game than we can working apart. >> reporter: sitting next to monahan, the chairman of the new venture, yasir al rumayyan, head of the public investment fund which has spent billions of dollars to shake up pro golf and now pro soccer, luring superstars like cristiano ronaldo to play in the kingdom. in a statement, the group 9/11 families united said it was shocked and deeply offended by the merger. on the other hand, former president donald trump, who owns golf courses which are on the liv schedule this year, he called it a, quote, big,

beautiful, and glamorous deal. norah. >> manny bojorquez with that unfolding story, thank you. well, today, former new jersey governor chris christie filed the workers' comp to run for the white house. cbs's caitlin huey-burns is with christie as he kicks off his campaign tonight in new hampshire, where he is set to make a case against gop front-runner donald trump. >> would you like a line by line on what i did today? >> reporter: former new jersey governor chris christie built a political brand as a street fighter, willing to tell it like it is. and in launching his second presidential campaign, he's taking that fight to former president donald trump and testing whether there are enough republican voters willing to listen. >> you have to be fearless because he will come back and right at you. >> thank you. >> reporter: it's a far cry from 2016, when he dropped his first presidential bid after dismal showings in iowa and new hampshire, becoming a key ally and adviser to trump. >> i am proud to be here to endorse donald trump for

president of the united states. >> reporter: christie prepped him for debates and, for a time, led his transition team. but the chaotic presidency that followed and then false claims of election fraud turned christie into a fervent never-trumper. >> i got off the train when he stood up in the west wing of the white house, behind the seal of the president, and told us the election was stolen. >> reporter: christie is now betting new hampshire's independent voters are also willing to get off that train. >> i kind of like the guy, but i hope that he can get in there. but there's so many in there right now. >> reporter: an expanded field may stand to benefit trump, who leads his closest rival, florida governor ron desantis, by double digits. former vice president mike pence will launch his own campaign for president tomorrow in iowa. and as for christie, the next challenge is meeting the donor and polling requirements for the debate stage, where he's vowed to go after donald trump. also among the criteria, a

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>> announcer: this is the "cbs overnight news." i'm willie james inman in washington. thanks for staying with us. environmentalists blame climate change for the rising sea levels causing havoc around the world. from daytona beach, florida, where recent storms have undermined decades-old shoreline homes and businesses to the beaches of normandy, where the historic sites from world war ii are slowly being swallowed by the sea. perhaps the most vivid example of what's to come is playing out off the coast of panama, where an entire island community is being relocated inland. manuel bojorquez got a firsthand look at the trouble.

>> reporter: for hungz of years, these waters have acted as the buffer that protects the gu na allah culture. on crab island, every square inch is occupied. houses perched right on the edge of the water. we ae island's tiny ports to see it for ourselves. >> gracias. >> reporter: here there are no cars or motorcycles. women dress in traditional attire. and people who gather in their government halls speak the native tongue. [ speaking in a global language ] it's where we met magdalena martinez, who also speaks spanish. [ speaking in a global language ] "we had to leave due to great forces," she says, recounting out na gu na allah escaped aggression from spanish colonizers andgenerations ago.

but now the tide is turning. flooding like this has become more frequent due to the effects of sea level rise on these low-lying islands, especially during the rainy season. the evidence of which we saw firsthand when magdalena martinez showed us around the island's fragile coastline. [ speaking in a global language ] >> so that's the watermark? >> reporter: you could see how high the water had come ione he schools. and into some homes during high tide. >> yeah, you're not making this up, you say. >> no. [ speaking in a global language ] >> the sad reality. >> si. >> reporter: to be sure, overpopulation of the islands is a problem. but scientists say the bigger threat is climate change. >> by 2050, they'll be

underwater. >> underwater. >> that's less than 30 years. >> less than 30 years. >> reporter: we spoke with this woman of panama's ministry of the environment in the country's capital. >> it's a real thing. it's a real problem. >> it's a real problem. >> reporter: she says sea level rise is caused by carbon emissions raising the earth's temperature, causing glaciers to melt and water molecules to expand. the water around the islands rose at a rate of about 1 millimeter a year in the 1960s. now it's about 3.5 millimeters a year, meaning laguna allah will have to leave. >> they'll have to be moved. >> there's no other option. the rise of the sea level is not going to stop. >> reporter: it's something people here have slowly started to accept after years of putting up a fight. they've used rocks and remnants of coral reef to try to reclaim or expand their land. [ speaking in a global language ] >> all the time?

>> uh-huh. >> the water doesn't stop? it keeps going up. >> reporter: agusto boyd says it's been the only way to keep the water at bay. the owner of one of the few stores on the island realizes it's a losing battle and they'll have to leave it all behind. >> it's very difficult. [ speaking in a global language ] >> everything you did here stays behind. >> reporter: this will be their new home, a stark cookie cutter suivion. rows of houses that cld not be more different than life on gar dee sukh do. it's being built on land owned by da gu na allah with the majority of the funding from the panamanian government. about $13 million so far but already facing delays. >> how far are we from the island? two kilometers away from the island? >> reporter: alexander jaime is with panama's ministry of housing. ⌞> this place is so different

from what they're used to. there's no other option. [ speaking in a global language ] >> there's no other place to go other than here. >> reporter: back at gar deke sukh dube -- >> garba is the basket. >> reporter: a group of women, including magdalena martinez, was eager to show me these homemade baskets they use for groceries. >> you don't want plastic bags at the store. you want to bring your -- this is to protect the environment. this is your home. >> my home. >> your home. >> si. >> reporter: they view climate change as a problem caused by the industrialized world unfairly bearing down on them and the culture they've so fiercely defended. >> the sign there says, people who lose their tradition lose their soul. are you concerned about losing the tradition? [ speaking in a global

language ] "no, we don't have that fear," she says "because we carry the tradition inside." yet that determination doesn't completely mask the fear of facing this new threat to their culture. manuel bojorquez, gardy sukh dube, panama. >> the "cbs overnight news" will be right back. yo! you gotta try this new axe. it's the fine fragrance g.o.a.t.! ♪ ♪

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chris tompkins is on a mission to save the world, or at least big chunks of the world. the former ceo of the outdoor clothing company patagonia has dedicated her life and fortune to protecting the wilderness, creating 14 million acres of national parks in chile ct u mpki her natal habitat. >> come on! >> reporter: keeping up with chris tompkins is not easy. >> i can tell you've spent many an hour in a kayak because i'm just trying to keep up with you here. >> no, no, no. >> reporter: and here on the urban waterways of austin, texas, her mind floats to something much bigger and much farther away. >> if you just focus on that bank, that west bank, you'd think, oh, we're in the middle of a national park. >> reporter: tompkins knows a lot about national parks. for three decades, she's helped

create or expand 15 of them in south america's patagonia region, protecting nearly 15 million acres of land that likely would have been lost to mining and logging. >> why is it so important? >> you have to protect the lungs of the world. we can't use up every square inch of this planet. >> reporter: worldwide, we are losing wilderness at the rate of 27 million acres a year. just in the tropics, that's equivalent to ten soccer fields every minute. >> you have to make space for non-human life. and once you decide that that's the kind of person you are, your life is changed. ♪ east coast girls ♪ >> reporter: chris tompkins' life changed back i worh her friend iva in sha nard at his little known climbing equipment company. >> then we started making clothes, and that became patagonia company. >> reporter: she was patagonia's

first ceo for 14 years until she met and fell in love with doug tompkins, who also knew a little something about clothes. he was the co-founder of the north face and later esprit. he left the fashion industry in the early '90s and convinced chris to join him in chile. >> i'm going to leave my role as ceo. >> i retired and two days later on sunday, with two little bags, i closed up my beach house and moved to a roadless area on the coast of chile. >> what a life. >> reporter: that journey is the subject of the new documentary film "wildlife." it chronicles how doug and chris tompkins devoted much of their lives and wealth to buying up vast tracts of land in patagonia. >> pretty soon we had the >> reporter: they never intended to keep the land for themselves. through tompkins' conservation, they became two of the largest private land owners in the world, protecting what chris tompkins calls the crown joewel

of patagonia for everyone to enjoy. >> it's the same way we feel about any land we've ever conserved. this has never been the chris and doug story. >> it was all about love. >> reporter: but the chris and doug story is the heart of the documentary by filmmakers jimmy chin and chai vas relli. the husband and wife duo behind the oscar winning film free solo, about famed el capitan climber alex honnold. >> we make films about people achieving the impossible. yellowstone national park is the biggest national park in the united states. that's 2 million acres. they preserved at this .15 million acres. >> doug, he had this audacious vision of these parks and he happened to fall in love with the great ceo who could execute this stuff really well. >> how are you doing, chris? >> i'm okay. >> reporter: chin and vas relli are close friends with most of the people in the film, and doug tompkins was chin's climbing mentor. >> i felt more pressure in making this film than any film

i've made. when you're making a film about your heroes, you better get it right. >> i've always wanted to make a film about a strong female protagonist, and chris is that in spades. and i think especially when her third act came, you know, you really see a woman find her voice. >> i took the zodiac out. >> reporter: but that third act was born from tragedy. >> douglas tompkins died tuesday in an accident in chile. >> reporter: doug tompkins was killed in a kayaking incident in 2015. >> and then we flew in the next day. >> reporter: leaving chris shattered. >> thank you for coming. >> is there something you've learned about yourself that maybe you might not have had you not lost your husband? >> losing doug was the worst thing that could happen to me. in the shadow of that, you realize you have no fear, and that makes you absolutely free

to take on anything. >> reporter: that fearlessness has fueled her work. >> 2.3 million. now we're talkin'. >> reporter: securing even more land and helping rewild it with native species including pumas and jaguars. >> ola. >> reporter: and in 2018, chris tompkins handed over land for five more national parks to the president of chile. >> you should be so proud. >> reporter: one of the largest private land donations in history. [ applause ] >> what were you feeling in that moment as you were saying, okay, here you go? >> we made it! >> reporter: it was the purest sense of joy i think i ever have experienced. >> i love urban parks. they're the jewels of the cities. >> reporter: tompkins saw the documentary for the first time last month at the south by southwest festival in austin. and at age 72, she says she still has a lot more work to do.

>> my intention is to do this work until i drop dead. so we're just getting

overseas, sweden is on a path to become the fir smoke-free country in europe. but just because people there aren't lighting up as much doesn't mean swedes don't enjoy their tobacco. ian lee explains. >> reporter: it's getting pretty lonely for swedish smokers like paul monha. >> i aim to stop at some point. maybe not today. perhaps tomorrow. >> reporter: the country is on the verge of declaring itself smoke-free. that's when less than 5% of swedes smoke daily. >> no, i do not smoke. why? i don't know. i just never started. >> i don't like the smell. i want to take care of my body. so, no, it has never been an interest for me. >> reporter: but it's not just healthy living that's snuffing out smoking. >> you are not allowed to smoke

inside or even at outdoor terraces in restaurants and pubs, no public places like platforms. >> reporter: the country also has a smokeless secret kind of like chewing tobacco. >> this is a smokeless tobacco product made of tobacco, salt, and water, and some flavors to it. >> reporter: and snuse usage is slowly on the rise. >> it's part of the swedish culture. it's like the swedish equivalent of italian parma ham or any other cultural habit. >> reporter: health experts say while it's important to offer smokers less harmful alternatives, the goal remains the same. >> we have to have not only a smoke-free but a tobacco-free and nicotine-free society. >> reporter: a place where the only thing in the air is the smell of summer. ian lee, cbs news. and that's the overnight news for this wednesday. for some of you, the news continues. for others, check back later for "cbs mornings" and follow us

online anytime at cbsnews.com. reporting from the nation's capital, i'm willie james inman. this is "cbs news flash." i'm shanelle kaul in new york. at least two people were killed in a shooting at a high school graduation in richmond, virginia. five others were also injured. a suspect is in custody. a woman identified as susan lorincz is under arrest after she allegedly shot and killed her neighbor last friday in ocala, florida. the marion county sheriff's office says ajika owens was shot through the suspect's door after knocking on it following a dispute involving owens' kids. and damar hamlin is making a comeback. he took part in his first off-season practice with the buffalo bills tuesday since suffering cardiac arrest on the field in january. for more, download the cbs

news app on your cell phone or connected tv. i'm shanelle kaul, cbs news, new york. tonight, the environmental disaster unfolding in ukraine after a critical dam on the front lines is blown up. now the russians and ukrainians are blaming each other as thousands are forced to flee. here are tonight's headlines. ukraine's president calls the destruction a war crime with towns underwater, some facing gunfire as they try to evacuate. >> the damage to the ukrainian people and to the region will be significant. the pga tour shocks the sports world by joining forces with saudi-backed liv golf. tonight some of the game's top golfers and 9/11 families are outraged. >> you're taking their money at the cost of all these human rights atrocities.

california governor gavin newsom accusing florida's governor, ron desantis, of kidnapping after two groups of migrants have been flown to sacramento. breast cancer breakthrough? promising new research reveals artificial intelligence may be the answer to predicting cancer risk in just seconds. another former confidant of donald trump enters the 2024 race. what former new jersey governor chris christie's candidacy means for other contenders. how are we going to make this work? >> what about their development? >> can i afford to live and pay my bills? >> more than half of the country lives in an area considered a child care desert. meet two moms who are doing something about it. >> we've seen both sides. this is a problem, and we need to do something about it. and the surprise of a lifetime. a military dad travels 30 hours to make it to his daughter's graduation.

>> announcer: this is the "cbs overnight news." we want to begin tonight with the growing fears of an environmental catastrophe unfolding in ukraine. this is not because of the ongoing bombs and bullets raining down on citizens, but instead the cascading floodwaters that are threatening thousands of people after a critical dam on the front lines was sabotaged. we are learning that those floodwaters are expected to peak in the coming hours. ukrainian president zelenskyy blamed russian terrorists for blowing up the soviet-era dam, calling it the largest manmade environmental disaster in europe in decades. take a look at these stunning satellite photos from before and then after the explosion. look at all that water. it is rushing now towards cities and towns. streets were turned into lakes

and rivers, and homes and businesses swept away. and it comes just as ukraine is beginning its long-planned counteroffensive to retake territory held by russia. cbs's debora patta is going to start us off tonight with all the new developments. >> reporter: the blast smashed through the dam wall, causing a massive breach as one section collapsed completely, sending torrents of water surging towards the southern city of kherson, less than 50 miles away. homes partially submerged, some even floating away. and once fertile agricultural ground now a soggy wasteland. the flooding has forced the evacuation of thousands of people. some fled under fire. others scrambled to protect their animals, like tatiana, who frantically searched for her pets, begging one dog not to drown and searching for others in her waterlogged home. the dam holds back a reservoir containing about the same volume

of water as the great salt lake in utah and is important for the safe running of the zaporizhzhia nuclear power plant, which is also kremlin-controlled. the united nations atomic energy body says that plant is safe for now. but ukraine is furious. from official outrage in kyiv with president zelenskyy accusing russia of a brutal war crime to anger and loathing in kherson. "we were under occupation for nine months," said this woman. "now we have been flooded by these wretched occupiers." the kremlin denies any involvement. what both sides can agree on is that this has triggered an environmental disaster, endangering crops, drinking water, and an entire ecosystem. and a humanitarian crisis for the people of kherson, who endured months of russian fire only to be chased from their

homes by rising water. white house national security council spokesman john kirby says they're assessing reports that russia is responsible for the blast. and while they cannot say conclusively what happened yet, norah, what is clear is that the damage to the ukrainian people and the region will be significant. >> devastating. debora patta, thank you. now to a surprise move in the world of professional golf. the pga tour and european tour today announced a merger with controversial saudi-backed liv golf. cbs's manuel bojorquez reports the agreement follows months of lawsuits and suspensions that have teed off some of the game's biggest names. >> reporter: the stunning announcement comes after a bitter two years, which saw saudi-backed liv golf poach some of the sport's biggest names with lucrative deals as the pga fought back, suspending those players from pga events.

david dusek is a senior writer at golf week. >> i don't think there's any way you can look at this and say the liv golfers weren't the winners. they obviously won on this. >> reporter: among the biggest names to join liv golf, hall of. famer phil mickelson tweeted, awesome day today. pga champs tiger woods and rory mcilroy have not commented on today's news but have been vocal critics of golfers who joined liv. >> my dad said to me a long time ago, once you make your bed, you lie in it. and they've made their bed. so, you know, that's their decision, and they have to live with that. >> reporter: liv golf is seen by many as a saudi attempt at sports washing, essentially building a worldwide sports brand that distracts from the country's record of human rights abuses -- the murder of "washington post" columnist jamal khashoggi and an fbi report detailing saudi ties to 9/11. this was pga commissioner jay monahan last year. >> and i would ask, you know, any player that has left or any

player that would ever consider leaving, have you ever had to apologize for being a member of the pga tour? >> reporter: today he struck a different tone. >> we've recognized that together, we can have a far greater impact on this game than we can working apart. >> reporter: sitting next to monahan, the chairman of the new venture, yasir al rumayyan, head a close confidant of saudi's crown prince and head of the public investment fund, which has spent billions of dollars to shake up pro golf and now pro soccer, luring superstars like cristiano ronaldo to play in the kingdom. >> so is the moral of the story the money wins? >> it certainly unfortunately looks like in this case, yes. eventually if you keep bringing the trucks of money again and again, and again, you're going to be able to find just about everybody's price. >> reporter: in a statement, the group 9/11 families united said it was shocked and deeply offended by the merger. on the other hand, former president donald trump, who owns golf courses which are on the liv schedule this year, he

called it a, quote, big, beautiful, and glamorous deal. norah. >> manny bojorquez with that unfolding story, thank you. there's a lot mo news

>> announcer: this is the "cbs overnight news." we want to turn now to the political and possible legal fallout from those chartered flights of migrants from texas to sacramento, california. florida officials along with republican presidential candidate governor ron desantis are accused of arranging the flights. cbs's elise preston reports california's attorney general is now investigating whether the flights were illegal. >> reporter: a political firestorm is brewing over groups of migrants that were flown to california's capital. florida officials say this video provided by their emergency management division shows

migrants signing paperwork agreeing to go to california. >> human beings are being used as political pawns in someone's political game. >> reporter: since friday, two private jets carrying three dozen asylum seekers, mainly from venezuela, traveled to sacramento from the texas border. it's believed many of them had no idea where they were going despite florida's claims. california's attorney general, rob bonta, is now investigating. >> we believe these individuals were lied to, deceived, manipulated, exploited, and abused. it's certainly morally bankrupt and also potentially illegal. >> reporter: bonta points to a $12 million program in the state that funds the transport of, quote, unauthorized aliens out of florida. >> they don't work with migrants or immigrants who ever touched foot and set foot in florida. they're in texas. >> reporter: last year, florida governor ron desantis also claimed responsibility for transporting 49 migrants from texas to martha's vineyard in massachusetts.

meanwhile, sacramento's leaders are welcoming the asylum seekers. >> we will never cower, ever. we'll welcome people. we always have. we always will. >> reporter: church groups here in sacramento are temporarily housing the asylum seekers. in recent tweets, california's governor gavin newsom called desantis pathetic and threatened to charge him with kidnapping. he also said california will lead with inclusive and just policies. norah. >> elise preston, thank you very much. we turn now to a possible game-changer when it comes to the fight against breast cancer. cbs's janet shamlian reports on a new study which shows in the age of ai, technology is better at predicting a patient's risk than current methods. >> reporter: it's cutting-edge research. artificial intelligence is significantly better at predicting a patient's cancer risk according to a new study out today. >> the role of ai in predicting breast cancer risk is definitely

in our future. >> reporter: dr. polly niravath is a breast oncologist with houston methodist. >> assessing a person's risk, the ai can do it probably a lot cheaper and faster as well. >> reporter: current clinical models use a patient's age, family history, and information like breast density to determine risk. artificial intelligence is able to get biomarkers, more information from the mammogram, helping doctors make personalized recommendations. the kaiser permanente research analyzed the mammograms of more than 18,000 women. ai took just seconds to determine their five-year breast cancer risk, and it was up to 25% more accurate when combined with personal history. the american cancer society reports this year alone, doctors will diagnose almost 300,000 cases of breast cancer. more than 43,000 u.s. women will die of the disease. the rate of breast cancer in women ages 25 to 39 has increased 32% since 2009.

>> i think it ends up being a very valuable tool in our arsenal. >> reporter: dr. niravath says younger women could benefit from this technology, a predictor of when they should get screened, which could save lives. and here at houston methodist, they are already using ai to help determine breast cancer risk. while it's not widespread, its use is growing, and the technology could be especially helpful in areas that lack advanced medical resources. norah. >> it is such an important story. janet shamlian, thank you so much. well, tonight 75 million americans from new england to the midwest and as far south as the carolinas are under air quality alerts. that's because smoke from wildfires in eastern canada is causing dangerous pollution in the u.s. you can actually see how dense that smoke is in this satellite image. in new york city, alerts are expected to remain in place through friday, meaning you should limit your time outdoors.

we want to turn now to some breaking news back here at home. multiple people have been shot outside a high school graduation ceremony in richmond, virginia, this afternoon. our cbs richmond affiliate, wtvr, has obtained cell phone video from the scene. we are hearing at least five victims have been shot, including three with life-threatening injuries. the shooting happened at a theater on the campus of virginia commonwealth university, which went on lockdown. police are on the scene. our affiliate reports that two suspects are in custody. now to part two in our series on the growing child care crisis in america. in addition to rising costs, more than half of the country lives in a child care desert, where there is little or no access to child care. cbs's meg oliver shows us how two mothers are trying to solve thutob what went through your minds? >> what are we going to do? who's going to take care of our kids? >> how is this going to affect

my job? can i keep my job? >> i remember calling 12 day cares one day and having all of them be like, wait list, wait list, a year and a half, a year and a half, maybe a year. >> reporter: in wisconsin, finding child care is a hardship. there's one spot available for every three kids. that's considered a child care desert, and 51% of the country lives in one. >> so i actually did lose my job. sorry. i'm emotional. >> that's okay. >> so, yeah, an important impact on my performance too much last year. >> could you keep up what you were doing, taking care of your kids and working? >> it was hard. like i put my family first, and so my job obviously got repercussions from it. >> reporter: here in outagamie county, population close to 0,00ilre oit list chil aers have stopped using a wait list due to last november when this day care shut down, full-time working

moms virginia moss and tiffany simon toct >> we had dinner together two nights in a row, and we're just running numbers and figuring out what's going to make sense. and we felt like we could do it. >> hi. >> reporter: they bought the building, and within two months, the physical therapist and data consultant opened joyful beginnings academy, hiring management, 20 day care workers, and enrolling 75 kids. >> can you do that? >> reporter: day care workers here can earn up to $17 an hour compared to the state average, between $11 and $13. >> we've seen both sides. we've felt the pain, both sides. so now we can go and educate that this is a problem and we need to do something about it. >> reporter: it's a small fix in a desperate area. their day care already has a wait list of nearly 100 kids. >> if virginia and tiffany didn't step in and reopen this day care facility, where would you all be? >> i probably would have had to turn around and sell my home, move in with my family.

>> really? >> yeah. >> and one of us would have probably left our jobs. >> what does this child care facility mean to your community? >> i think it's bonded our community together, especially living in a neighborhood with a lot of little kids. we all kind of went through this struggle together. >> reporter: an american crisis affecting too many families. meg oliver, cbs news, dale, meg oliver, cbs news, dale, wisconsin. your new axe fine fragrance body wash, sir. it's the g.o.a.t. ♪♪ the new axe fine fragrance body wash. get clean with the greatest of all time. if you've had sensitivity, those zingers can really cause some of that jolting pain. there is one great solution out there with sensodyne. it creates a protective barrier, and now they get to feel like, 'oh, this is a product that actually works. ♪ when you really need to sleep. 'oh, this is a product that actually works. you reach for the really good stuff. zzzquil ultra helps you sleep better and longer when you need it most. its non-habit forming and powered by the makers of nyquil.

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the white house. cbs's caitlin huey-burns is with christie as he kicks off his campaign tonight in new hampshire, where he is set to make a case against gop front-runner donald trump. >> would you like a line by line on what i did today? >> reporter: former new jersey governor chris christie built a political brand as a street fighter willing to tell it like it is, and in launching his second presidential campaign, he's taking that fight to former president donald trump and testing whether there are enough republican voters willing to listen. >> you have to be fearless because he will come back and right at you. >> thank you. >> reporter: it's a far cry from 2016, when he dropped his first presidential bid after dismal showings in iowa and new hampshire, becoming a key ally and adviser to trump. >> i am proud to be here to endorse donald trump for president of the united states. >> reporter: christie prepped him for debates and, for a time, led his transition team. but the chaotic presidency that

followed and then false claims of election fraud turned christie into a fervent never-trumper. >> i got off the train when he stood up in the west wing of the white house, behind the seal of the president, and told us the election was stolen. >> reporter: christie is now betting new hampshire's independent voters are also willing to get off that train. >> i kind of like the guy, but i hope that he can get in there. but there's so many in there right now. >> reporter: an expanded field may stand to benefit trump, who leads his closest rival, florida governor ron desantis, by double digits. former vice president mike pence will launch his own campaign for president tomorrow in iowa. and as for christie, the next challenge is meeting the donor and polling requirements for the debate stage, where he's vowed to go after donald trump. also among the criteria, a pledge to support the eventual nominee, and neither christie nor trump have said whether they'll sign it. norah. >> caitlin huey-burns, thank you.

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tonight we have an important consumer alert. two more deaths have been linked to a baby pillow lounger that was recalled nearly two years ago. regulators are sounding the alarm about the boppy newborn lounger now linked to the suffocation deaths of ten babies. the agency is also calling on meta to ban the sale of these loungers on facebook marketplace, saying it's been requesting to have the listings taken down about a thousand times a month. well, a graduation surprise. that's next.

finally tonight, you may need the tissues for this one. a military dad traveled more than 30 hours from his deployment in the middle east to watch his daughter walk across the stage at her college graduation. navy petty officer second class douglas hernandez traveled from dubai to las vegas to surprise his little girl, pamela. he had been deployed since july of last year. the two shared an emotional hug as the crowd cheered that beautiful moment. it's a reminder how much people who serve our country sacrifice. and that's the overnight news for this wednesday. for some of you, the news continues. for others, check back later for "cbs mornings." and remember you can follow us online anytime at cbsnews.com. reporting from here in the nation's capital, i'm norah

o'donnell. this is "cbs news flash." i'm shanelle kaul in new york. at least two people were killed in a shooting at a high school graduation in richmond, virginia. five others were also injured. a suspect is in custody. a woman identified as susan lorincz is under arrest after she allegedly shot and killed her neighbor last friday in ocala, florida. the mamarion county sheriff's office says ajika owens was shot through the suspect's door after knocking on it following a dispute involving owens' kids. and damar hamlin is making a comeback. he took part in his first off-season practice with the buffalo bills tuesday since suffering cardiac arrest on the field in january. for more, download the cbs

news app on your cell phone or connected tv. i'm shanelle kaul, cbs news, new york. it's wednesday, june 7th, 2023. this is the "cbs morning news." breaking overnight, a white woman who shot and killed her black neighbor is under arrest in florida. what investigators are trying to determine at this hour. also breaking overnight, at least two people are dead in virginia after a shooting at a high school graduation. what we're learning about the suspect. mass evacuations. a major dam collapse in ukraine flooding an entire town. we're going to take you to kharkiv. well, good morning, and good to be with you. i'm anne-marie green. breaking overnight, a white woman in florida is under arrest for allegedly shooting through her front door and killing her black neighbor.