this is bbc news. the headlines: thousands of people in flood—risk areas of pakistan have been told to evacuate their homes. aid agencies say floods could develop into one of the country's worst disasters as the heaviest monsoon rains in decades continue. nearly 1,000 people have died sincejune, while thousands more have been displaced. the united states�* director of national intelligence, avril haines, has disclosed that her office is to lead a review of potential security risks from classified materials recovered from donald trump's home in florida earlier this month. a spokesman for mr trump accused the democrats of �*weaponising' the intelligence community. serbia and kosovo have reached a deal to allow free movement between their countries. it's one of the issues that has

fuelled recent antagonism between the balkan neighbours. serbia has refused to recognise identity cards issued by kosovo. kosovo has an ethnic albanian majority and has declared independence from serbia. now on bbc news, click heads to norway to test out some software which could allow lost dogs to be found via crowdsourcing. 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, whilejumping 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 — ijust 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 under—researched 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 menstrual 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 thanjess ever had. i think there is always that thought that because i am at high level athlete, it is that i have more knowledge about moving my body but it is actually about everybody having

the ability to tap into their rhythm. 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 lean muscle and become stronger and, who knows, it may have affected my performance in a positive way. the majority of medical testing has historically been done on males. the impact on healthcare is that women are using medical drugs and protocols that are made for man. even the wearables that work with her own fitness app come with bias inbuilt.

it tells me if my body temperature goes up, or if i'm ovulating or are pregnant. 12 million monthly users, the clue cycling tracking app includes one of the biggest datasets. 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, i 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 deep fake technology to try and solve the killing of a teenager nearly 20 years ago. 0fficers 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 deep fake 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 i0s 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 film, 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 back 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. 0riginally called crossrail, work started in 2009, but it's 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. so, 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 train cars 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 that 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? i'm going to cancel your rout ex 393 and i will do that now. 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. 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. i think in the future, it's going to be called ertms. ertms is still under development and once that occurs, there'll be 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. all change, please. all change. always wanted to do that. oh, you would have loved that.

oh, i so would have done! 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 their dog? yes. 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! chuckles. 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.

0k, and the app is now telling me this is emma, and not only that, it is showing me that emma has been reported as missing and it's telling me where she was reported missing, and i can share my location with the owner, so they can be reunited. 0bviously, emma is not really a lost dog — the huskies had been logged in the app so we can see if we can tell them apart. unlike a microchip, which could 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 showing their paws or their ears. but the nose is exposed all the time, and after the dog

becomes six 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. for three of the four nations of the uk, this is, of course, a bank holiday weekend and as bank holidays go, this one hasn't started off too badly. that was the scene for a weather watcher in devon during saturday — just a bit of patchy cloud, some sunny spells. most places were dry and most

places stay dry into sunday with high pressure dominating the scene. however, we have got one weak frontal system bringing cloud and some rain to start off across northern ireland and scotland — some rather misty and murky conditions for a time here. further south across england and wales, any early mist clearing, some good spells of sunshine. we will see one or two showers developing into the afternoon but they will be the exception, rather than the rule. brightening up a little bit across southern parts of scotland. staying cloudy in the north. 16 for stornoway, 23 degrees in london. through the late afternoon, though, we could see a little bit of rain developing across parts of northern ireland. that could well expand across the irish sea into parts of north west england, south west scotland as we go through the night. a fair amount of cloud also streaming into north—eastern parts and the breeze will be picking up, so that will hold the temperatures up in double

digits for many of us and that brisk breeze will be a big feature of the weather for monday — a bank holiday for england, wales, northern ireland, not for scotland. with high pressure to the north of us, we will see brisk north—easterly winds making it feel rather cool and certainly keeping things rather cloudy for some eastern parts. the best of the sunshine and the highest of the temperatures will be further west, where you get some shelter of england, temperatures here could get to 25 degrees. lots of sunshine to come here. also a decent amount of sunshine for wales, parts of northern ireland. further east, we will see more in the way of cloud. could be one or two afternoon showers but there's confirmation of that fairly brisk breeze and some low temperatures across northern and eastern parts — 15 for aberdeen but 25 degrees in cardiff. now, as we look further ahead, high pressure will remain with us for a good part of the coming week but we'll see one low to the south. that could introduce some showers and then, by the end of the week, chances are that a frontal system from the west will introduce some outbreaks of rain. so, there is the increasing chance of some rain as we get towards the end of the week and after a rather cool couple of days for some, temperatures

will climb a little. things that led to his undoing.

this is bbc world news. our top stories: the heaviest monsoon rains in decades — a national emergency in pakistan after millions of people are forced from their homes. us intelligence experts are to review classified materials obtained from donald trump's home in florida. angry protests across india after the group who gang—raped a muslim woman have their sentences cut. serbia and kosovo agree to allow free movement across their borders in an eu—brokered deal. and what's behind the latest workplace trend of so—called quiet quitting?