perhaps highs of 19 and possibly 20 degrees if we are lucky. winds will continue to freshen further through the night of the high pressure drifts a bit further north and west and that will allow that cooler air to really start to push its way further south and west so it's going to be a cooler and windier start to sunday and there will be more cloud round and there will also be a risk of a few more sharper showers as we go through the day. no three different to the feel of the weather with top temperatures of 11—16 . hello, this is bbc news. the headlines: 0utrage as authorities in texas admit police were wrong to delay storming the school classroom, where a gunman killed 19 children and two teachers. former us president, donald trump, dismisses calls for gun reform but says the us should prioritise funding for school security over aid to ukraine. in ukraine, officials warn it

may need to withdraw from the eastern region of luhansk, to avoid their soldiers being captured by russian forces. as the school half—term begins, travellers are experiencing busy roads and long queues at stations and airports. british prime minister borisjohnson continues to face criticism from some of his own mps after sue gray's report into lockdown parties in downing street. latin america reports its first case of monkeypox — as the world health organization warns the number of infections will continue to rise. and in sport, liverpool and real madrid fans descend on paris — to support their teams in the final of european club football's most prestigious prize. now on bbc news, it's time for click.

this week, we will catch up with an olympic superstar hoping to help women exercise smarter. i'm trying to run for a gold medal here, but i'm also very aware that i've just started my period. chris is braving the cold. still, he has some furry friends to keep him warm. but what is he doing with his phone? who knows. show me your nose? and all aboard the new elizabeth line as paul's schoolboy dreams come true. this station is paddington, where this train terminates. all change, please, all change. i have always wanted to do that.

on your marks, get set, go! can you believe that it's exactly ten years since this site was just getting ready to host the 2012 olympic games? it feels like it was yesterday that this 0lympic stadium was alive with the roars of the crowd cheering on the athletes. time flies. and when you plan a site like this — indeed, when you spend all that money, it's important to plan a legacy, how the place can be put to good use once the games are finished. and the park still thriving with football, swimming, cycling and, generally, just being a nice place to come. and in a weird way, the same is true for olympic athletes, who only usually get to compete at that level for the first part of their careers. takejessica ennis—hill, who gave us so many great moments, even winning gold in the 2012 heptathlon. yeah, and infact, she ran the entire distance that we have just walked in 12.5 seconds, while jumping over stuff! and her career still took more twists and turns after that, with injuries, a remarkable return after her pregnancy

to win at the world championships, and then taking silver in brazil. and since retiring from competitive sport she, like the whole park, is looking to the next thing. now, it's still connected to sport, as you would expect, and it is also connected to women's health, specifically menstruation. periods aren't something that's always openly talked about, and discussed even less in relation to exercise, butjessica's new app helps women to work out better around their cycle, so shona mccallum has been to meet her to find out more. training hard in the gym, building strength, and getting a sweat on — but what if you are on your period? 0ne occasion, i was at thejunior european championships and i remember just running that 800 metres thinking, "i'm trying to run for a gold medal here, "but i'm also very aware that i've just "started my period". ijust rushed off the track

and felt like i couldn't have — i just didn't absorb that amazing, like, gold medal moment. jess ennis—hill was at the top of her sport. olympic and world champion in the heptathlon, she had physios, dietitians, and coaches looking at all aspects of her training programme, but nobody looked at when she was menstruating. i always remember it being an awkward conversation, so i had a male coach and it was predominantly a male environment, and i remember, yeah, just having those small conversations of, you know, "i'm on my period" or "i'm a bit tired" or "i'm not feeling 100%" but never feeling fully confident about having that more open conversation about how i felt and how it was making me feel when i trained. but it's notjust athletes that this affects. women make choices

about training around their periods all the time. sometimes, you want to rest and other times, you want to run. that's because we have different hormone levels at different times of the month. 0ur menstruation cycle is split into four different phases. they are period, follicular, luteal, and premenstrual. each phase is determined by the two main hormones, oestrogen and progesterone, which are at differing levels, depending on where in the cycle you are. using this information as a guide, jess decided the best way to get her message across to women who wanted to keep fit was an app. after a couple of months of inputting your period data, the algorithm begins to recognise what phase of the menstrual cycle you are in and gives you tailored fitness options from things like yoga to high—intensity workouts. so, you do roughly a minute of that and then we could go

into some core, so can position yourselves on the mat. so does your period affect your ability to exercise? well, the team atjennis thinks so, and it is something their users are keen to know more about. as a 45—year—old woman, i knew very little about the way my body works and i decided to learn about that. it seems to still be a taboo to talk about periods and menopause and things like that and i think that's changing, and i want to be part of that. perhaps we don't know as much about our bodies as we should. but the area is still extremely underresearched and the academic studies which have been done may not be reliable. 42% of the research was actually low quality, so what we do have, the majority of it was kind of low quality in terms of they weren't really looking at the mentrual cycle hormones in terms of blood sampling and the gold standard methods, so not only do we have a research gap we have

this quality issue as well. so, moving forward, not only do we need to increase the quantity of research we're getting, but we also need to make it better, so we can get to those sort of more accurate conclusions on female physiology. there are a lot of more popular apps available, including fitrwoman, flo and clue, so women now have more tech at their disposal than jess ever had. i think there is always that thought that because i am do you think you would have been a better athlete had you trained in accordance with your period? it's a really good question. i think i would have been able to train smarter. i think when you get to a certain level, everything, every small incremental change is hugely important. i think that maybe if i would have spent more time understanding particularly when to push myself in the strength room, for example, when i'm in that follicular phase, then i would have perhaps built more muscle and become stronger and, who knows, it may have affected my performance

in a positive way. what kind of insight are you gleaning for the first time? 0ne particularly fascinating study we're doing with researchers at mit. we are using clue data and pairing that with air pollution data, taken in

occurrences like the california wildfires. this can help us draw conclusions like the impact of pollution on fertility, for example. wow, that is fascinating, would never have expected that to be a factor. natural cycles pairs with a thermometer and its 2 million users are also shaping health beyond menstruation. you are actually in temperature data able to see covid hotspots when it broke out in early 2020, because we saw an increased number of temperatures being excluded by the algorithm. the future of healthcare is really to get early insights and have preventative measures, rather than get sick and get treatment. so the potential of data is huge — but with so much information it may feel overwhelming, especially with so many free, paid for, and subscription services on offer. there is also the challenge of making sure data is not misused. it's good to be aware that no product is ever truly free, so the company has

to monetise either by running ads or selling your data to a third party. and today, as abortion legislation comes under scrutiny in the us, there are new concerns about protecting app users from the long arm of the law. at times now with roe v wade, it is terrifying, and we want to be able to support women and their choices. i don't think we can assume thatjust because we are a european company that gdpr will protect us. yet as some prepare for potential hurdles ahead, new options like this saliva based fertility kit continue to bring new data to light. we collect the saliva, ifold it over, and then i put it in my little inne reader. amelia chose inne after having her contraceptive device removed. it is very easy for me.

at the beginning, a had a few times where it didn't, yeah, my saliva was undertaken appropriately, but now it suits for my day very well. the kit costs around £300 for a year, and some might not like trashing used swabs each day. but if one solution isn't perfect, users can always pick and choose. combining the fertility and cycle tracking app clue makes me feel more secure because i have the best of both worlds, many symptoms i can track in clue and the progesterone levels, is not fully developed, so i willjust wait and, yeah, be part of the process. time for a look at this week's tech news. the facial recognition company clearview ai has been fined more than £7.5 million by the uk's privacy watchdog. it has found the firm had been collecting pictures of people's

faces without consent. the company says as technology has been "misinterpreted". it what's thought to be a world first, police in the netherlands have used deepfake technology to try and solve the killing of a teenager nearly 20 years ago. officers released constructed footage of the victim, calling on people to speak up about what they know. translation: in order to reach the right people in this case, - the witnesses who have information about the circumstances, it is necessary to touch people's hearts. with the deepfake technology we were able to let sedar make his own appeal. no car charger? no problem. this pop—up solar car park has been unveiled this week, built out of recycled shipping containers, it is designed to be operational wherever it is needed within 2a hours, and can hold enough charge for 12 cars. and to celebrate 15 years of google street view, you can now turn your phone into a time machine. the latest version of the ios and android app will let you flick through old street view footage of the same location. i hope i mowed

the lawn 15 years ago. you may have seen casey neistat touring first class cabins in the clouds, hanging from helicopters in hollywood, or snowboarding the streets of new york city. he has had his own tv series, acted in movies, founded and invested in tech companies, and is now turning his talents to feature—length documentaries. i sat down with the viral star, virtually, of course. hello, how are you doing, casey? i'm just happy that we all have our glasses on. the movie at large is a sort of a broader commentary on the pros and cons of what happens when there is no distance between sort of the creator and the audience. under the influence follows the meteoric rise and fall of fellow youtuber david dobrik. what happens with unchecked influence?

what happens when there are no speed bumps, no filters between this young twentysomething man who has this tremendous audience of tens of millions of subscribers, and billions, with a b, billions of views, with a degree of influence that was, i don't know it has been seen before. the things that led to his success were very much the same things that led to his undoing. in the failed, david's skyrocket to fame stalls when a member of his so—called "vlog squad", durte dom, is accused of sexual assault. in light of a news article, his sponsors drop him and youtube demonetises his uploads. just weeks later, though, he is back. the fact that in the shadow of all those revelations, that accountability did not yield the sort of consequence that certainly the journalists and the survivor herself had anticipated,

to me that is such a sort of a bleak outcome. it is, you know, what does it say about our society that there is such little accountability for wrongdoing in the world of influence and social media? i want to apologise to herand herfriends... david has says he believes the allegations and has offered an apology. durte dom has also apologised, but says it was consensual. as well as the film world, casey is also in the tech industry, founding video app app beme backj in 2014, which he sold to cnn for an estimated $25 million. we are officially live in the app store. we have seen such tremendous outcomes because of the opportunities created with technology.

but there's a downside to that. there are real negative outcomes, there are real dangerous outcomes, and that theme exactly is what my movie explores. good god, david! that was nick, talking to casey neistat. now, earlier we talked about the importance of olympic sites having a legacy and being useful and accessible to the wider community. one of the ways that is happening here in london is that, that purple circle up there means that this place is one of the new stops on a new train line that crosses london. originally called crossrail, work started in 2009, but has since been renamed the elizabeth line, opening just in time for the queen's platinumjubilee. but before the public got on board, paul carter went for a sneak preview. please, mind the doors!

this is the elizabeth line. london and the south—east of england's first new railway in a generation. it is also the uk's first newly built fully digital railway. and as click�*s resident train enthusiast, i was lucky enough to be one of the first people to ride the newest stretch of track. it has finally opened to the public, operating as three separate sections. when it begins fully operating as a single line next year it will be a 73 mile railway, carrying an estimated 500,000 passengers a day. in the core section of the line, running underneath central london, the £1 billion fleet of trains are almost entirely automated. this is a dream come true. setting off from stations at the push of a button. once you are ready, check monitors again, press start, and the train will take off. that's it. laughs. that's so surreal! in the central section, trains and signals communicate with each other automatically, meaning trains can run faster

and much closer together than if driven manually, allowing an increased service frequency. we are running 12 trains an hour, and the reason we can drive the trains a lot faster is because the computer controlling it is maintaining the distance between the trains ahead. so there is always a safe gap between them all, which can't be maintained on the normal network because of where the signalling system is set up. now, it has been a bumpy ride to get to this point. when construction began way back in 2009, it was europe's biggest infrastructure project. but it was beset by problems, and has opened 3.5 years late and £4 billion over budget. many of the delays to the project were put down to the complexity of integrating three separate signalling systems. to the east and to the west of london, drivers operate the trains manually, where more traditional signalling is in operation. the central core however uses a system of signalling called moving block.

historically what you would have is fixed block, so you have a colour light signal that tells the train that the next block is clear ahead, whereas with us, the train is making its physical own block as it goes along the track, meaning you can run as many trains as you want to. i went along to the control room for the elizabeth line in east london to see how it looks from the other side. this is where the magic happens. this is where all the magic happens. as is often the case, technology also requires a human helping hand. you are currently shown as not cabbed, you don't have a route set ahead of your train. is there an issue with your unit? indistinct speech. i will do that now, if you can just attempt to get your train on, if it is successful i will call you back and give you a route out. we have just seen there two instances of the benefit of having someone who is skilled and able to deal with problems here as well as having this kind of technology. yeah, 100, yeah. this is really the first step to going to digital railways, to be honest. in the future it's going to be called ertms. ertms is still under development and once that occurs, there's nothing to stop

other railways going fully digital, main lines at a lot higher line speeds. from a technological perspective, the elizabeth line offers a glimpse into what the future of train travel will look like. but call me a romantic, i am not ready to see the human element completely disappear from our railways. this station is paddington, where the train terminates. all change please, all change. always wanted to do that. oh, you would have loved that. oh, i so would have, and i'm sojealous of paul! paul loves trains but not as much as he loves dogs. only this week someone else has got to do the dog story for the programme. now, spencer, what can you tell me about dogs�* noses? um, they are wet. that's true, but they are also unique. so you know how in some parts of the world dogs are microchipped in case someone loses a dog? well here is another idea — chris fox has been to norway

to find out about it. we've always had a nose for a good pet tech story, so when i found a company developing phone—based face id for dogs, i knewjust where to come to test it out. somewhere with lots of dogs. until now, the usual way we identify dogs was with microchipping, and in some countries it is even the law. but a company from south korea has developed an app which can identify dogs a little less invasively. all right then, yup! laughs. on this phone i have got petnow, which is using the dog's nose print to identify the dog,

just like you can use a fingerprint to identify a human, a dog's nose print is very similar. so let's get to know this dog. come here! it turns out it is actually quite hard to get huskies to sit still for any length of time, especially when you are trying to scan their nose. show me your nose! it takes the phone a few seconds to take pictures of the dog's nose and analyse them in the cloud. it also saves the pictures it takes to the phone's camera roll so you can enjoy them later. in the end, with a bit of help from professional husky musher nicholas, i was able to get a successful scan. ah, yes, it's found it. ok, and the app is now telling me this is emma, and not only that, it is showing me that emma has been reported missing, and says where she was reported as missing, and i can share my location with the owner

so they can be reunited. obviously emma is not really a lost dog — the huskies have been logged in the app so we can see if we can tell them apart. unlike a microchip which can be cut out of a stolen dog, you can't really remove a dog's nose, not without spoiling the dog. and by using the phone's camera to scan, anyone in theory can check a stray dog without any specialist equipment. backed at base i spoke to petnow to find out why they'd settled on nose prints for dog recognition. there may be paws or ears or iris, but some dogs really hate going their paws or their ears. but the nose is exposed all the time, and after the dog becomes 6 months old, the nose print stays their entire life, so we believe it is the best part for identification. what inspired you to make a nose print recognition app? in south korea the number of dogs and cats which are lost or abandoned is also increasing. the vet bills are not standardised in south korea, and some owners

are simply not willing to pay the high bills when their dogs or cats become really sick. some of them just choose to abandon them on the street. so we wish to build up a world without lost or abandoned animals. some kennel clubs already used dog nose prints as a form of id, but petnow hopes its app will become mandatory in south korea to help reduce the number of dogs that are abandoned by pet owners when a big vet's bill arrives. to do that they will need the backing of government, and a huge marketing push so that everybody, including people who don't own a dog, knows about the app and how to use it. that was chris, always good at sniffing out a story. i did ask her not to do that. um, let's go, shall we? thank you very much for watching, we will see you soon. bye— bye.

hello there. it's not been too bad start to our weekend, has it? there is a good deal of dry weather out there, and a lot of sunshine. take a look at this. this was northamptonshire early on this morning. a glorious start to the day. this is a beautiful weather watchers picture sent in from highland scotland, but there is certainly more cloud around, and there have also been a few isolated showers as well. not quite as many as over the last couple of days, but still a bit of a nuisance, here. and we could see this cloud drifting in off the north sea, bringing a few showers as well to that east coast. so, further west, with lighter winds

and minimum shelter, that is where we will see the best of the sunshine and the best of the warmth. top temperatures expected of 19 celsius. just that little bit cooler on exposed east coast, the winds, light, but starting to come from a northerly direction. as we go through the evening, however, the winds are set to strengthen, and that could drive further showers in line. we could see a line of organise showers developing across the north of england, the midlands, and eventually parts of east wales as well to start the day on sunday. single figures, so a chilly start, particularly when you factor in the winds starting to strengthen and the fact that it is coming in from the north, never a warm source, whatever the time of year. so, the blue tones denoting that cooler air starting to push even as far south as the midlands. on sunday, certainly more cloud around and we have seen in recent days and the risk of some showers, more frequent, right across the country. the temperatures will struggle, and we are likely to see there's northerly winds playing their part. in terms of the feel of the weather, a maximum of 15, maybe 16, if we are lucky, but that is subdued for this time of year, and noticeably cooler on these exposed east coasts.

as we move out of sunday into monday, the high—pressure drifts away, allowing this load to move away which could bring further or longer spells of rain, particularly across the north and west on monday. a lot of cloud around on monday, and some of those showers could be quite slow moving as the winds fall lighter. top temperatures again 16 celsius and still a little bit disappointing, but we are likely to see a change developing on tuesday into wednesday. the winds pushing background to a south—westerly. dry for england and wales, more showers continue, further north and west.

good afternoon. the former us president, donald trump, and other leading republicans have dismissed calls for gun reform, days after 19 children and two teachers were killed by a teenager with an assault rifle in texas. speaking at the national rifle association gun lobby convention in houston, mr trump said the massacre in uvalde was a reason to arm — not disarm. this report from our correspondent, sanchia berg. just days ago, children cowered in their classroom here in uvalde as an armed man came in and started shooting.