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nooyi's departure leaves only 24 women as chief executives of s&p 500 companies. that is less than 5%. we are joined now by cbs news financial contributor melody hobson. melody, good to see you. >> good to see you. >> over the past year female ceos are down 25%. you're on the board of three major companies. do the numbers we're seeing worry you at all? >> oh, my gosh, absolutely. i mean, we are moving in the wrong direction. let's just think about it from an absolute standpoint.

last year there were 32 women. now there are 24. less than a handful are women of color. this is going backwards. now, some of these women are retiring, like indra, who's had a formidable run at pepsi. some have left for performance reasons. but at the end of the day we're talking about a disappearing act here, a shrinking number of women, and that is not good. >> so why is that? in your estimation, what needs to be done? >> so first of all, we need more of a bench. when you look at the women that are ready to step into that role in senior position, we just don't have enough women there. and part of that again is just management and boards and leadership have to commit themselves, and i think you get what you incent. you have to incent people to have diverse teams. if you look at catalyst numbers, at senior positions last year 23% of senior positions were held by women. this year it's 21%. d so boards have to really, you though, see that and step up. >> so much of it is that nurturing, though, and setting everyone up for the next generation, which everybody is

trying to do. all right, mellody, thank you so much. good to see you here. the number of people caught illegally crossing the border is up by 142% this year. that is the northern border. but thousands more from more than 100 nations are avoiding capture because the border patrol is stretched so thin along the frontier with canada. don dahler takes a look at this. >> reporter: if you include alaska the u.s. shares over 5,000 miles of border with our neighbor to the north. >> we do not have the resources at our disposal that the southern border has. >> reporter: border patrol agent norm legg is in charge of about 300 miles of it in vermont and new york. during our drive along he showed us vast areas where the border was unmarked and largely unprotected. >> it's impossible for us to cover 100% of the border. >> but as an american is that the threat that concerns you most? >> that is a huge concern of mine. >> reporter: sometimes entering the u.s. is as simple as crossing a 20-foot-wide clearing

in the woods. or paddling across a flower planters is vermont. on that side is quebec. and these are more markings than you see on much of the northern border. the border patrol says despite their dedicated personnel and all their technology people are coming across illegally. last year border patrol agents along the northern border caught 3,027 people who were in the country illegally. nearly half, 1,489, were from mexico, which is on the southern border. mexican citizens don't need a visa to enter canada, and one-way flights to toronto and montreal only cost about $300. the border patrol uses high-tech motion detectors, sens cameras to monitor some areas but they admit there are hundreds of miles of unguarded border and they simply don't know how many people are coming across illegally. don dahler, cbs news, derbyline,

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searchers have made a gruesome discovery at a rundown property in new mexico, where they had been looking for a missing child. omar villafranca has the latest. >> reporter: sheriff's department in new mexico rescued 11 children and found a child's body at a makeshift compound that was raided over the weekend. >> we have a good idea of a target location to look for the child. yesterday at 11:19 a.m. we did find the remains. >> reporter: deputies say the

children were living without fresh water or food in filthy conditions. one of the men in custody is siraj wahhaj, who's facing abduction charges in georgia. wahhaj is accused of taking his 4-year-old son abdul-ghani to a park just outside of atlanta in december and never returning home. toos county sheriff jerry hogrefe says investigators have not identified the child's body found at the compound. >> the breaking point for us was somebody with great knowledge of the compound sent a message saying basically that "we are starving and the children are starving." >> reporter: in total, two men and three women were arrested in the raid. the women are believed to be the mothers of several of the chidren. one man was heavily armed. omar villafranca, cbs news, dallas. still ahead here, a hurricane heads toward hawaii. why did i want a crest 3d white smile?

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the father of a missing university of iowa student says he believes she may have left willingly with someone she knows. 20-year-old mollie tibbetts, seen in this video, went missing nearly three weeks ago now. investigators have received about 500 tips. rewards total more than $300,000. hurricane hector, with winds up to 130 miles an hour, is about to skirt hawaii. the eye is expected to pass less than 200 miles south of the big island tomorrow, bringing high surf and tropicalforce winds to hawaii. another first for spacex tonight. overnight it launched and recovered a used block 5 rocket. it is the type of company -- the type of rocket the company hopes

to launch astronauts into space next year. on this flight it sent an indonesian communications satellite into orbit. every fire department every police department is part of a bigger picture. that bigger picture is statewide mutual aid. california years ago realized the need to work together.

teamwork is important to protect the community, but we have to do it the right way. we have a working knowledge and we can reduce the impacts of a small disaster, but we need the help of experts. pg&e is an integral part of our emergency response team. they are the industry expert with utilities. whether it is a gas leak or a wire down, just having someone there that deals with this every day is pretty comforting. we each bring something to the table that is unique and that is a specialty. with all of us working together we can keep all these emergencies small. and the fact that we can bring it together and effectively work together is pretty special. they bring their knowledge, their tools and equipment and the proficiency to get the job done. and the whole time i have been in the fire service, pg&e's been there, too. whatever we need whenever we need it. i do count on pg&e to keep our firefighters safe. that's why we ask for their help.

we end here tonight with a chance encounter that has turned a woman from new jersey into a star. here's michelle miller.

>> reporter: ruth reid never thought a visit to her favorite convenience store would make her a celebrity. >> i want to drop off a couple cases of root beer to your house. >> reporter: she hates all the attention. >> stop it, stop it. >> reporter: that's what picking up stra's get you these days. >> and he just walks up here and he was standing here with you? >> yeah. >> and you were like oh, he looks familiar? >> he looks familiar. ♪ >> reporter: that man was multigrammy award-winning country music star keith urban. reportedly worth $75 million. but ruth didn't believe him. >> why would keith urban be here? >> in a wawa. >> i know. in medford. i just felt it was somebody putting me on. and then he said ask my bodyguard. and the huge man i had noticed was behind us, and that's when i just fell apart. >> reporter: reid has made a habit out of paying it forward in medford, new jersey. >> i made a new year's resolution to once a week treat somebody at wawa. it makes me feel >> reporter: hoping to spread that positive attitude, she

posted the experience on facebook, becoming a social media sensation that's even inspired a song. ♪ there's a middle-aged man in front of me looking short on money ♪ >> reporter: ruth says don't think of her as a saint. >> like i'm not mother theresa here. >> reporter: but as a retired third-grade teacher, still offering a lesson or two. >> if i can get a couple people to say okay, i'm going to do what she does, this will have all been worth it. >> reporter: michelle miller, cbs news, medford, new jersey. >> that is the "overnight news" for this wednesday. for some of you the news continues. for others check back later for the morning news and of course "cbs this morning." from the broadcast center in new york city, i'm jeff glor. ♪ ♪

>> announcer: this is the "cbs overnight news." hi, everyone, and welcome to the "overnight news." i'm demarco morgan. it is now official. the monstrous firestorm burning out of control in northern california has grown to become the largest in state history. the mendocino complex fire has charred about 1,000 square miles, destroyed hundreds of homes, and forced thousands of people to flee. but it's only one of 17 stubborn blazes raging across the bone-dry state. john blackstone is on the fire line. >> reporter: for the second day the so-called holy fire erupted in southern california, sending plumes of smoke thousands of feet into the air, threat to nearby communities down below. time lapse video shows the wildfire mushrooming in the

cleveland national forest. orange county residents say they had little time to escape in their cars when the flames ignited on monday. >> fire travels faster than you think. over two hours the flames were chasing us. >> reporter: cbs news correspondent manuel bojorquez has been monitoring the fire throughout the day. >> reporter: you can see the smoke rising from the leading edge of the holy fire. crews here in southern california are trying to make sure the flames don't come any further down that ridge, where evening winds could push them closer to hillside neighborhoods. >> reporter: it's this type of extreme wildfire behavior that's been plaguing the northern part of the state for weeks. the biggest one by far is the mendocino complex fire. it has burned an area about the size of los angeles. this is the northern edge of the huge mendocino complex fire. this fire already the largest one in california history is growing even larger, coming over this ridge, coming down into a valley. that's how this fire has been growing for some 11 days now.

and tonight there are new worries about air quality. smoke clouds wafting from the fires are carrying a toxic mix of gases and fine particles from burning plants and trees. that combined with record-breaking heat is causing unhealthy breathing conditions across much of the west. back here at the mendocino complex fire this firefight is expected to last until september. >> this has been the scariest one. because it was so angry. >> reporter: firefighters are attempting to set up a perimeter here to stop the flames from getting down into this valley, but for days now that's how this an enormous fire that just keeps growing on another hot day. there was more damaging testimony at the trial of president trump's former campaign chairman paul manafort. -te deputy testified manafort's millions in offshore bank accounts and shell companies. paula reid has the story. >> reporter: after hours of cross-examination of the

prosecution's star witness paul manafort's lawyer offered this assessment. >> mr. manafort had a great day. >> reporter: attorney kevin downing attacked richard gates's credibility one day after he testified that his former boss knowingly committed crimes. "you knowingly and intensionally lied question, defense attorney kevin downing asked. "yes," gates answered. "i provided false information to the special counsel's office prior to my plea agreement." downing peppered gates with questions about what the defense dubbed the secret life of rick gates. gates admitted to having an apartment in london to facilitate an extramarital affair but denied he used funds embezzled from manafort for the tryst. he also acknowledged he may have submitted personal expenses to president trump's inaugural committee for reimbursement. it's possible, gates conceded. as gates struggled to answer questions about wire transfers he authorized, downing pointed out gates's memory was much clearer when a prosecutor was the one doing the questioning. "have they confronted you with so many lies you can't remember

any of it?" downing asked. earlier in the day the trump campaign was discussed at length for the first time. after manafort resigned as the campaign's chairman in august 2016 gates stayed on and eventually worked on trump's inauguration. prosecutors showed e-mails from manafort urging gates to find a position in the new trump administration for stephen chalk, a banker who prosecutors say gave manafort a loan based on fraudulent information. i was in the courtroom earlier, and gates was visibly nervous under downing's relentless questioning. gates will be back on the stand tomorrow as defense attorneys say they have at least another hour of questions for him. stock in tesla went through the roof when founder elon musk hinted that he may take a struggling carmaker private. trading was halted with tesla up nearly 8%. now, musk's comments come amid new questions about the safety of tesla vehicles. kris van cleave has the story. >> if i want to start the autopilot what do i do? >> basically you want to use the

gear lever, just tap that down like you're going to drive again. and you hear that noise. >> it's my first time behind the wheel of a tesla and my first trip with autopilot, the driver assistance technology that has suffered a series of high-profile accidents including this fatal crash outside san francisco in march. >> it tells me to keep my hands on the wheel. >> right. and that's i think a message that a lot of people miss unfortunately. >> reporter: that's tim stevens, editor in chief of cnet's road show. >> what is autopilot 3 sn. >> aught po o. pilot's basically a suite of driver assistance systems based on camera and sensors built into the car. particular flit highway it will stay knits lane, speed up or slow down based on traffic and make it so the car takes some of the drudgery out of driving on the highway. >> reporter: tesla says the amped up cruise control should only be used on divided highways because it needs clearly marked lanes and does not respond to traffic signals or stop signs. >> i feel like there's this perception that this is a self-driving car, which it very much is not. >> reporter: that misperception, or what the ntsb called overreliance on vehicle automation, factored heavily in this crash in florida in 2016

that killed 40-year-old joshua brown. during our drive autopilot generally performed well on this busy stretch of new jersey highway. >> oh! >> reporter: but when two lanes merged together -- >> it nearly drove us into the subaru there. >> not quite a perfect system. the car was not aware there was another car that was about to steer into us. >> reporter: jake fisher is "consumer reports'" director of auto testing. >> it is unclear if there is any safety benefit of these systems, and there very well might be a safety problem. with these systems. >> reporter: on the magazine's test track fish oer showed us h autopilot struggled to navigate turns when road lines faded. >> didn't get this one. >> didn't get that one. >> to be clear, we are intentionally misusing the system. >> right. >> but so are drivers every day. restaurant says autopilot can't monitor where the technology is used or a driver's attention to the road. >> we're now racing to the end of the track. >> yeah. so i hit the brakes because i don't want us to get hurt.

>> reporter: tesla declined our requests for an on-camera interview to talk about autopilot. we understand the system is set for an upgrade in the coming weeks. tesla did tell us that autopilot is designed for an attentive driver and if it is used as directed they say autopilot is safe. the "cbs overnight news" will be right back.

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>> announcer: this is the "cbs overnight news." in florida a flood of toxic algae known as red tide continues to choke the life out of fish and other marine life. dead fish, sea turtles, birds, and even manatees are washing up on shore. red tide is a natural occurrence along florida's southwest coast, but it usually ends in six months. this year the red tide is in its ninth month and more toxic algae is spilling out of lake okeechob okeechobee. manuel bojorquez reportsnibel i. >> reporter: they're dying by the tens of thousands. fish, eels, turtles. sometimes as far as the eye can see in parts of southwest florida. >> there's one manatee right there. >> reporter: one of several

lifeless manatees was pulled from the water. the suspected culprit, a toix algae bloom known as red tide. >> have you ever seen it this bad? >> no. i've seen some bad ones. this is the worst i've ever seen. >> reporter: ozzie fisher has been a fishing guide here for more than 20 years and is already seeing cancellations. >> it's hard to breathe around here. it stinks. >> oh, it really stinks. imagine if you paid $5,000 to come here on vacation and you tell your wife and your 3-year-old to go on the beach and breathe this in. you can't do that. it's bad. >> reporter: the toxins can be harmful to humans too, causing respiratory illnesses for some beachgoers. the algae and bacteria are usually found in pockets, but this year they've mushroomed over 150 mimes. eraterro s and str cane problem. the red tide, which typically goes away in spring, has persisted for nine months. conservationists like heather baron say the overall effect on

fragile species can you long-lasting. >> i've cried three times already today. imagining that one day my three small children may grow up and these animals may not be here anymore. but bottom line is we've got to clean up our waters. >> reporter: here on sanibel island cleanup crews have not been able to keep up with this putrid wave of dead sea life. and it extends for miles in either direction. there's no telling how long this could last. the worst bloom on record, back in 2006, lasted 17 months. manuel bojorquez, cbs news, sanibel island, florida. and those sea turtles may have more to worry about than toxic algae. the green sea turtle nearly vanished from the florida waters 40 years ago, but a concerted effort b effort by conservationists brought them back from the brink. now the species face an even bigger threat, climate change. mark strassmann explains. >> reporter: both of these are

sea turtle nests at the height of hatching season. under a nest like you this might find 100 eggs or more. up and and down this beach there are more than 650 sea turtle nests, greens, loggerheads and leatherbacks. sea turtles are an endangered species and the males in particular seem to be disappearing. in a beachfront ritual that dates back more than 100 million years we came upon this 300-pound green sea turtle covering her beach nest, burying maybe 100 eggs or more. >> this is what what turtle's babies will look like. >> reporter: biologist jeanette winekin directs florida atlantic university's marine lab and has studied florida's sea turtle population since 2002. she's alarmed by what she doesn't see in her tanks of hatchlings. >> we're seeing fewer and fewer and fewer years where we find males. so seven out of the last ten years we have not found any males -- >> not a single one? >> not a single one.

not a single one. >> up to 300 pounds. at least the species we're excavating today. >> reporter: taylor roe helps collects hatchlings for winekin's research on why male sea turtles seem to be disappearing. >> looks like we might have close to over 100 empty shells, which means those hatchlings made it out and went to the water. >> reporter: it's not genetics that determine a sea turtle's sex. it's the sand's temperature. the tipping point is roughly 85 degrees for a species that is predominantly female. >> if it's too warm, you don't get boys. if it's too cool, you don't get girls. so it's the hot chicks and cool dudes. >> reporter: what explains why these nests keep getting warmer? >> certainly weather. and -- >> reporter: climate change? >> climate change. >> reporter: as florida's beaches get hotter, species are showing signs of shutting down. sea turtles and possibly also alligators. another reptile whose eggs skew female and whose sex is determined by nest temperatures. on this rooftop at the

university of north florida biologist adam rosenblatts built 20 nests of 20 alligator eggs apiece. this plastic tarp will warm the nest by 5.5 degrees. that's how much hotter north florida's expected to be by the end of the centery. >> what's happening in sea turtles my thought was it could be happening in alligators as well and it could throw off the balance between males and females. >> reporter: >> reporter: back in winekin's lab she uses a mini camera to determine their sex after they reach six weeks old. sxwlif to wait until they're big enough for me to sort of look under their skirts. >> reporter: last night winekin's team released hundreds of hatchlings into the sea to the admiration of dozens of turtle fans. she knows the odds are already long for this prehistoric species, more so now that climate change is in play. >> there's some resilience in there that we as scientists may not have discovered. and then there's part of us that says things are changing so fast compared to what's happened in

the past. that resilience may not be enough. >> reporter: there's something to see. sea turtles don't reach sexual maturity until they're at least 25 years old. so the impact of these disappearing male hatchlings may not be known for another generation. months of drought in europe has unearthed mysterious crop circles in the irish countryside. turns out they weren't made by aliens. surpris surprised? but possibly by the same people who built stonehenge. jonathan vigliotti has the story from new grange island. >> reporter: what farmers consider a curse archaeologists are calling a blessing. that drought revealed what can only be seen from a bird's eye view. and if you look closely across this field of wheat you can likely see several dark markings cile.e shape of a perfect theye not extraterrestrial, but they are a gateway to another world. hid nen an irish farmer's field,

a discovery that's grabbed the world's attention. after a drone frafrp captured this just over a week ago. a perfect circle as wide as 1 1/2 football fields. >> when you first saw the aerials of these markings, what went on in your mind? >> well, my first thought was wow. my second thought was what's going on there, what is it? >> reporter: as archaeologist stephen davis explains, it is not alien but the remnants of a hennage, a kind of ancient community center built around 5,000 years ago. >> in the neolithic it was absolutely hopping. there were loads of people here doing things. >> reporter: it's similar to england's famous stonehenge. this irish version was likely built using wood to create two fence-like structures. over thousands of years they decomposed, leaving footprints of fertilized soil visible only when a heat wave wilts the crops around them. >> they knew what they were doing and i today with the same tools they were using it would take us an awful lot longer.

>> reporter: new grange is a unesco world heritage site known for its henges and other archaeological treasures. like this ancient burial site with rare examples of knee loithic art. >> these little moments where you can imagine the person sitting there patiently carving it out. >> it's a tomb but it's also in many ways a time capsule. >> it is, yeah. >> reporter: and more time capsules have been revealed. last week remnants of a ghost town and world war ii air field were discovered. it's amazing that it took a drought to unlock this secret. does it make you wonder what other secrets are out there here? >> we know there are other secrets out there. >> reporter: out there and like ireland's henge hid nen plain sight. the "cbs overnight news" will be right back. olay ultra moisture body wash

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telly's life. tucked away along a two-block stretch in new york's greenwich village, seemingly insulated from an evolution outside its doors, is carmine street guitars. it's one of the few shops remaining in the city that still has its roots firmly planted in old new york. keeping the books in order, kelly's 93-year-old mother dorothy. >> new york city's so special. the neighborhood's gone through lots of changes. a lot of the old places, the old haunts came and went. a lot of the clubs are going under. >> reporter: even in a digital age where production is rapidly trending toward automation, everything here is still crafted by hand. >> a lot of wood out of chelsea. chummily's is the old speakeasy on bet effort. >> reporter: the sawdust that lines the floorboards at carmine street were once part of the city, old cultural landmarks, many that no longer exist.

you call the reclaimed wood you that use in these guitars the h >> reporter: it's the bones of these buildings. all these buildings are framed out in this old wood. they throw it away. i find it in dumpsters. i do a lot of dumpster diving. and i've managed to get some really nice iconic historic buildings. >> reporter: littered among the stacks of pine in kelly's shop include beams from the 130-year-old chelsea hotel and prohibition-era speak easy chumly's, stomping grounds for some of rock and roll's greatest talent and literary giants from hemingway to fitzgerald. >> so this is mcsorley's. >> yeah, this is wood that came from the bar of mcsorley's. oldest bar in new york. >> reporter: rick pumps out about four custom guitars a month, capturing a bygone era r instrument. >> you have patrons dylan. lou reed.

>> yeah. patti has one. ♪ ♪ come on now try to understand ♪ >> john: j.p. cousin has been one of rick's customers for nearly a quarter century. >> i would say rick is the last vestige of, you know, homemade products. he built a guitar for roger waters of pink floyd. you want to stop here and hang out for five minutes. but you also have to know that ten minutes later rick wants to you leave because he's busy. >> what does it mean to you when you see a concert and you see your work of art being used by another artist creating art? >> i know it's amazing to see. when lou was at carnegie hall and he was playing my guitar it was like wow, that's like magic. ♪ holly came from miami, fla d. salingernd chatted on

those timbers i get to make guitars out of. you walk by pce has been closed all night

the ford motor company is jumping into the 21st century, outfitting some assembly line workers with high-tech robot vests. kris van cleave tried one on for size. >> it's not exactly the iron man suit but this is the vest that ford is giving to employees worldwide. they cost about 6 grand, and the goal here is to see if they'll reduce injuries, which is good for the workers, and could save ford a lot of money. for six years now nicholas scott spends much of the day on the ford mustang assembly line reaching up, hands in the air and turning screws. >> my gun is about a pound or two. but you lift it up 500 times a day. >> reporter: but unlike most of the workers at ford's flat rock plant, he gets a little extra boost. >> they call me rocket man or superman all the time.

mr. incredible. >> reporter: it's an exoskeleton that helps maintain good posture, adding up to 15 pounds of support to each arm when it's raised up. >> wearing the suit i'm not tired. i can go home, have fun, play catch with the daughter. quality of life is a lot better with the suit. >> reporter: exoskeletons date back to at least the 1960s when general electric developed this giant prototype for the military. and they've shown promise in helping people with spinal cord injuries walk. analysts expect the exoskeleton market to grow from 68 million in 2014 to 1.8 billion in 2025. >> applying technology the right way to reduce injury. >> reporter: morty smets, an ergonomic expert at ford, is focusing on shoulder injuries. they can cost $100,000 per employee to fix and rehab. >> if you think about 15 pounds applied several thousand times overt kofrs a shift we figure it's about the equivalent of not having to lift of mass of 20 mustangs per day per arm. >> reporter: here at boeing's

south carolina plant they've been evaluating suits like this one for a couple of years and have found some real benefits to the workers. in fact, the company believes the day could come that this suit is essentially just part of what workers wear when they're building airplanes. >> fire in the hole. >> reporter: structure mechanic tyrone washington showed us how it works at the plant's training center. >> all day you're talking anywhere from 500 to 1,000 fasten years. >> that's a lot of lifting. even at eight pounds. >> even at eight pounds. >> that's 8,000 pounds. >> reporter: washington was part of a six-month pilot program on thethe line that builds the 787. >> are you looking forward to the day that this is part of the daily uniform? >> i am. it's a dream come true to be able to be a part of all new technology. >> not every worker who bmds builds a ford like this mustang will ebbed up needing one of these suits because not every job requires them. but they are going to become a lot more common here on the line. that's the "overnight news" for this wednesday. for some of you the news

continues. and for others you can check back with us a little later for th news" and of course "cbs this morning." "cbs this morning." from the broadcast c captioning funded by cbs captioning funded by cbs low temperature it's wednesday, august 8th, 2018. this is the "cbs morning news." close contests. both are being tallied in key elections across the country as parties battle for control in washington. paul manafort's business partner faces tough cross examination in manafort's frau