by new claims he did not recognise a longtime friend and fellow democrat at a recent meeting. soldiers deployed to the streets of bangladesh as anti—government protests turn deadly. and workers at disneyland vote in favour of going on strike, claiming they're not paid enough at the happiest place on earth. hello, i'm tanya beckett. the aviation industry says nearly 7,000 flights were cancelled on friday after a digital outage disrupted global computer systems. health care, banking and businesses were affected worldwide. the crisis was caused by a faulty software update which affected microsoft windows systems. while many airline services are returning to normal, operators expect some delays and cancellations to persist throughout the weekend.

and figures released by the airline data provider cirium, say that worldwide more than 1,600 flights have been cancelled today. the global chaos has sparked concern over the vulnerability of the world's interconnected technologies, and the extent to which a single software glitch could have such widespread impact. and the uk's national cyber security centre is warning that scammers could attempt to take advantage of the widespread computer problems. vinny mcaviney has the latest. a day of worldwide it chaos, thanks to an update meant to protect systems but which instead paralysed them with this blue screen. train services and airports were badly affected with thousands of flights grounded all over the globe, from the uk to asia and the us. this flight radar data shows us skies emptying out as the outage took hold.

delays and cancellations are expected to persist for several days. here, medicine deliveries to pharmacies were disrupted and gps in england had problems accessing patient records. ambulance services across the country have reported a surge in demand as a result. if you have an urgent problem, you should contact your own gp surgery, either in person or by telephone. and if that's not possible and you're worried, then you are to go online and have a look at messaging from 111 or call 111. it even affected software used by broadcasters, knocking some tv channels off air. cafes, restaurants and shops were also left unable to process payments. we had a lot of problems with the card machine. the cards are not going through. it'sjust there's no signal. at crowdstrike, we monitor

trillions of cyber events. i the cause? a single update from this us antivirus company. you may not have heard of crowdstrike before but it has nearly 2a,000 business customers around the world, many of them huge organisations like airlines and banks. we stop a lot of bad i things from happening. we're deeply sorry for the impact that we've to customers, to travellers, to anyone affected by this, including our companies. so, we know what the issue is. we're resolving and have resolved the issue. now, it's recovering systems that are out there. to be clear, this wasn't a hack or cyberattack, so you don't need to change any passwords. it only affected machines running microsoft. but every single one will need a manual reboot in safe mode, which is not as simple as turning it off and on again. microsoft says some people have to do this as many as 15 times. we've been long encouraged to keep our devices�*s software up to date but there are now questions as to how one faulty update could have brought so much chaos. vincent mcaviney, bbc news.

the ceo of the anti—virus firm crowdstrike has apologised for the disruption that was caused, but there are now questions about how a routine update went so wrong. emma vardy sent this report from outside the company's headquarters in texas. there hasn't been a lot of visible activity here at the headquarters of crowdstrike, based in austin, texas. you can only imagine, though, what is going on inside. before today, crowdstrike had built a pretty strong reputation in a relatively short space of time for providing top it security solutions. it's operating in more than 100 countries worldwide. it's relied upon by so many different types of businesses and as well as it security. what crowdstrike also does is investigate hacks and do some detective work on the hackers that are behind major cyber attacks. now, the chief executive officer of the company has said he's deeply sorry.

he has been speaking on an american business news network today. but as for why the problems happened in what was supposed to be a pretty routine update, the answer to that still isn't clear, but some experts have speculated that perhaps it was a lack of testing which led to some weaknesses slipping through. so from now on, crowdstrike are going to clearly face some credibility problems. their stock price has already fallen, and there are growing questions about why so many different businesses and public services are reliant upon one company behind it all. and there are growing questions, too, about what repercussions software firms like this should face when flaws cause major disruption. the widespread global impact of a single software glitch has given many a cause for concern. our technology editor, zoe kleinman, has more on this. i think a lot more people are a lot more aware now of this tech infrastructure

that has really become part of the backbone of so much of our everyday digital lives, and how catastrophic it can be when one tiny thing happens that knocks that system over. i think the lessons we will look at going forward are, first, resilience, also known as having a plan b. i've had a lot of people say to me in the last 2a hours that they think they might start carrying cash again so that they can pay for things in the shops at this payment system goes down. i have seen people in the newsroom using more pens and paper than i've seen in quite a while. people mentally thinking, maybe i will keep a back—up of that important note i want to remember encase when i go back to my computer i have the blue screen of death and can't get back into it. how long that legacy will last, i don't know. something big like this happens and everyone thinks they will change their behaviour, then the following week they had forgotten all about it. we will have to see. i think there are also big questions to be asked of the giants — microsoft is very clear that it was not at fault here, it was not an update issued by it, but the question

is, how did it slip through its safety net? there was a dilemma, because in order for antivirus software to be effective, it has to be in your machine at a granular level to find any potential malware that is sneaking about, hidden away. that also means it has got to have this sort of access that leaves you potentially vulnerable if the software itself misfires, as it has in the last 2a rows. the question then becomes whether people have reaffirmed their faith in technology because they think more technology would fix the problem, or whether they are backing away from it. you are suggesting there was a temporary backing away but really the march of technology, artificial intelligence, will and must go on. i don't think technology will go backwards. there was far too much money and power going into the big tech companies building and providing these tools. there are lots of people who depend on it and who are encouraged to depend on it for our everyday lives. the benefits and convenience

are something that many people have accepted. we will also have to accept that the more we use it, the more these outages will affect us, the more we will notice them and the more catastrophic they could potentially be. we can speak now with trevor long, a technology expert and commentator in sydney, australia. welcome to the programme. the way that this particular story rolled out was really that it started in australia, that is where we started getting notifications, because it was the middle of the afternoon in australia in a business day. it went out in early — australia in a business day. it went out in early hours _ australia in a business day. it went out in early hours in _ australia in a business day. it went out in early hours in america, - australia in a business day. it went out in early hours in america, but i out in early hours in america, but in australia it was mid—afternoon, so the critical thing about this update was if the computer was on, it would apply the update. all of

these services were online, were operating, as were 24—hour operations around the world, so australia caught the brunt of the update which brought the retail industry here, let alone banking and airlines, to its knees. what industry here, let alone banking and airlines, to its knees.— airlines, to its knees. what does this tell us _ airlines, to its knees. what does this tell us about _ airlines, to its knees. what does this tell us about who _ airlines, to its knees. what does this tell us about who is - airlines, to its knees. what does| this tell us about who is exposed and when? 0ne this tell us about who is exposed and when? one wonders if there was communication between australia and the united states or other parts of the united states or other parts of the world, such that they could mitigate? i the world, such that they could miti . ate? , ., ., , mitigate? i understand that they discovered this _ mitigate? i understand that they discovered this was _ mitigate? i understand that they discovered this was a _ mitigate? i understand that they discovered this was a full - mitigate? i understand that they discovered this was a full 90 - discovered this was a full 90 minutes after issuing the update. that probably came about through some of their biggest clients in australia determining that their computers going down were going down as a result of this crowdstrike update. you can imagine frantic calls between it managers notjust around the world but here in australia to crowdstrike support, and that was why they rolled this back very quickly. unfortunately, they can stop the update after 90 minutes but it doesn't stop the fact that it occurred on millions of

machines. as you reported, that is a very manual process to overcome. it raises the question again to the extent to which we can rely on technology or whether there needs to be human intervention. is more technology the answer or not? unfortunately, the horse has bolted on lessening the amount of technology in our lives will stop but there are checks and balances required. microsoft will look at what they can do to prevent this happening at a system level. it managers in major organisations will probably look at this and go, we can't trust this company, and perhaps any company to simply deploy updates and we will need to vet those first and tick the box. for the average user, if you think about your smartphone, the average user, if you think about yoursmartphone, most the average user, if you think about your smartphone, most people watching right now probably have automatic updates on their apps. imagine if one of those apps, when it updated overnight, simply stop your phone from working, we would

turn off that automatic update in an instant and never let it happen again. a lot of it managers and businesses around the world will probably look at all of the software they have and consider not allowing these automatic updates in future. thank you forjoining us. joe biden said he's "looking forward to getting back on the campaign trail next week" after isolating with covid. 0vernight, a senior democratic congressman, who described mr biden as a mentor and friend, said the president didn't seem to recognise him at a d—day event last month, prompting yet more calls for him to drop of out the race to be re—elected. here's our north america correspondent, peter bowes. the calls forjoe biden to get out of the presidential race are not letting up. in all, more than 30 democratic members of congress, including four senators, have said they don't think he can beat donald trump. seth moulton, a congressman from massachusetts, was one of the first to speak out after the president's disastrous debate performance.

now he is elaborating on why he thinks his long—time mentor and friend should step down. joe biden, he says, used to greet him with a big wide grin and say how glad he was to see the congressman. but last month at a small gathering in france, he said the president didn't seem to recognise him. he says the incident led him to the crushing realisation thatjoe biden would be unable to defeat donald trump in november. the president, who is currently recovering from covid, still rejects that conclusion. he insists he will be back on the campaign trail next week. peter bowes, bbc news. earlier i spoke to katie pruszynski, a political analyst and phd research student at the university of sheffield's department of politics and international relations. the timing of biden�*s covid diagnosis has been really instrumental in allowing some of these democrat voices to come through, and thejuxtaposition

between biden�*s ill health with covid and trump being able to campaign on the basis that he survived an assassination attempt is really quite stark. and so you've got that very visible presentation of these two men who otherwise are sort of similar age to the american public, and one is looking incredibly fragile, and one now looks like he's defeated an assassination attempt. president biden may see this as an opportunity to regroup, have a rethink and respond to recent events. i think he's going to want to. um, the trouble is, is that now you're starting to see these very serious, kind of quite high—profile democrats come forward and take that moment of pause in the proceedings to vocalise their thoughts about it. none of these people want to seejoe biden drop out of the race for policy reasons. this isn't the squad kind of talking about him not being radical enough. this is a very raw political sort of problem

where they don't think he can beat trump and he's going to struggle at this point to make the case that he is strong enough. he's fit enough to not only beat trump, but to then go on and do the demanding job of being president. and so you've got a two—stage problem. can he beat trump? that's the immediate problem. but then do people believe that he's strong enough to carry out the very rigorous, demanding job of being president? and realistically, there's less than three weeks to decide the answer to that question if they would attempt to make any kind of smooth transition. well, i think this is the key question for democrats now, because they they cannot afford and they will not want to have an ugly fight about who could possibly take joe biden�*s place on the ticket. um, every day that goes by that they don't have a solid nominee or a back—up plan, or they don't know whether joe biden is staying in the race is a day that the republicans can campaign on the relative strength of trump, and they can focus on the things that they want to talk about. and everybody else is talking about who's going to be the democrat nominee.

and so the time really is ticking down now. and so democrats behind the scenes will not only be trying to see if they can urge joe biden to move himself out of the race. they won't want to sort of wield a knife towards him, as it were. he's so well respected within the party, but at the same time, they need to get this in order so that they can have a sense of transition that allows them time to campaign on issues and notjust on the person. the government in bangladesh has imposed a nationwide curfew, and called on the army to help quell protests in which at least 67 people have been killed. students have been demanding that ministers scrap a quota system which reserves many public sectorjobs for the relatives of veterans of the country's war of independence. the un has said violence against the protesters has been shocking and unacceptable. a spokeperson for the bagladesh police have said around 300 bangladeshi police officers were injured during friday clashes with demonstrators in multiple locations around the capital dhaka.

maya tudor, from the university of 0xford's blavatnik school of government, has been explaining the background to violence. so the impetus for these protests was a recent bangladesh high court decision to reinstate, as you said, a civil service employment quotas for relatives of the country's freedom fighters. to understand why these quotas are so contentious, one has to understand that the the independence struggle for bangladesh is relatively recent. it was only in 1971, in a very bloody battle that some scholars call a genocide, that the country gained independence, and in the context of that time, quotas, which reserved 30% of civil service seats for those veterans, were widely accepted as legitimate. today, however, that context

feels very different. first of all, those jobs are incredibly stable and lucrative and prestigious. there are just a few hundred of them and almost 500,000 bangladeshis compete for those jobs. and in addition, the current government, the incumbent government, the prime minister sheikh hasina, is the daughter of the country's founding father. and what that means is that many of her party's members benefit from these quotas, and the context today feels according to some of the students that i've spoken with, that it effectively entrenches the incumbent elite in positions of power. right. and underlying this is concern about the political backdrop. we had elections earlier this year. this country unquestionably has made huge advances economically, but there is concern about democracy and authoritarianism. absolutely, absolutely. this is taking place against a very different context than previous elections.

so it's worth noting that the students did protest against these quotas in 2018. the government, which was the same government, the sheikh hasina government, then promised to get rid of these quotas and the the high court reinstated them just now. but the context is really different because sheikh hasina, it's really strengthened as an incumbent. today, many democracy organisations worry that bangladesh today is becoming a one party state, but the context is also different economically. in 2018, you know, growth was was around 8%, growth is substantially down and inflation is up. and what that means is for the everyday person on the street is they're much more concerned about their pocketbook than they were, you know, when these protests last emerged. and the final thing to note is that this is also happening against the backdrop of multiple exposures of corruption in the incumbent

government, and that's intensified discontent with the incumbent government. and that's notjust among students. the authorities in china's shaanxi province say 11 people have died and more than 30 are missing following the partial collapse of a highway bridge. a statement by the provincial authority said the bridge in shangluo city collapsed on friday due to a sudden downpour and flash floods. rescue teams have recovered several vehicles that had fallen into the river.china's president, xijinping, has urged what he termed "all—out efforts" to find those still missing. a hard—line ukrainian nationalist party has blamed russia for killing one of its most prominent members. iryna farion was shot while walking through a street in the western city of lviv. she was a former mp for the svoboda party, and had achieved noteriety for insulting the country's russian—spea kers.

a statement by svoboda said that farion had been murdered on the orders of moscow. however, ukraine's interior ministry said it had "several versions" of who might be responsible. thousands of workers at disneyland in california have voted in favour of strike action in a dispute about pay. employees say they can't afford to live in the expensive neighbourhoods near the amusement park. disney says it is committed to reaching a deal. it is business as usual here outside disney headquarters, and that is what the executives inside want the public to know as well. disneyland is open, business as usual. the strike authorisation vote does not mean a strike is imminent. both sides say that. disney has said in a statement that it is committed to reaching a deal with its cast members, and that's what the workers at disneyland are called by the company. if you work there, you're a pirate, a princess or a plumber, you are

a cast member. there was performance involved in creating the magic of disney. that is what the workers say. they say, we make the magic, you make the money, and they would like some more of it. i was at a protest there earlier this week where i heard harrowing stories from disney workers about how difficult it is to make ends meet living in southern california and trying to get to the park, trying to find a place to live within commuting distance of the park. they make about $20 an hour, which seems like good money, but if you are on your own living in southern california or trying to raise a family, that is not a lot of money at all. it is difficult. the cost of living is astronomical. they are hoping for some more money. i spoke to some people who were living in their cars or in cheap motels around the park, and that is something they say has to stop. they say disneyland is a place where dreams do come true, so maybe they will for these workers when they resume contract negotiations

next week. that strike authorisation vote should give them a little bit more leverage anyway. members of the refugee olympic team have arrived in paris ahead of this year's olympics as they prepare to go for gold at the summer games. it's the largest refugee team to date — made up of 37 atheletes — and this will be the third consecutive olympic games to field the team. with me is our reporter, meghan 0wen. this is the first time many of them are meeting? of course, there are 37 athletes, the biggest team to date. they are from 15 countries and competing in 12 sports. what is interesting is this is the very first time that many of them have actually met each other. they arrived in normandy to do some pretraining and to get to know one another. the idea is that, after that, they will then be moving to paris, to the olympic village, where they will be open to train in

their host countries' teams. there is a cameroon born boxer who moved to the uk at the age of 11, the first—ever refugee boxer to compete in the olympics. there are also two sisters who are competing in cycling events, they are from afghanistan. what is remarkable is that they are competing despite the taliban banning women from sport. but there are 37 members in the team, so let's have a listen to some of the other athletes. we met and we are like from different backgrounds. we practice different sports. but, yeah, it was really important. and, yeah, i hope we inspire the other refugees and we will do our best to make proud this team. my preparation is to prepare to go and run game, to improve time, also to win, to get number two and three and four.

so i'm so grateful and thankful about this programme - that they had to - support the athlete. i use it for my training camps and my races i that i had in sweden. and outside of sweden. interesting story. it is very compelling, isn't it? what are the origins over this arrangement? it dates to around 2015 and the international olympic committee decided to create an emergency fund to encourage more refugees to participate in the olympics. the first time we saw a refugee 0lympic first time we saw a refugee olympic team was in 2016 at the rio 0lympics team was in 2016 at the rio olympics in brazil. it is managed by the olympic refuge foundation, with the 0lympic refuge foundation, with the idea to get elite athletes to participate in sport. to be eligible, they must prove that they are elite competitors and they are refugees in their host country and they are a recognised refugee by the

un refugee agency. according to the president of the international olympic committee, this is to demonstrate the human potential of resilience and excellence. he hopes it will send a message to over 100 million displaced people around the world that it is possible to be a refugee as to compete in the olympic games. thank you so much. two pandas at a zoo in the united states have made their official debut. yun chuan and xin bao are the first pandas to enter the us in 21 years. since arriving injune, the pandas have been acclimating to their new home and are expected to be seen by the public on august the 8th at san diego zoo. stay with us here on bbc news. hello there. friday was a hot and

humid day, but as we move through the weekend, the weather story again is on the change. it will turn cooler and there will be some rain around at times. let's take a look at where the recent rain has been. certainly across north—west scotland and northern ireland, with heavy bursts starting to push into south—west england and wales. that means the best of any early—morning brightness, even some sunshine, has been out towards the east. in fact, it was a beautiful start in east anglia. just take a look at suffolk, with lots of sunshine coming through. you might cling on to the sunshine as we go through the day, but for many, the cloud will arrive and continue to push its way steadily eastwards. but for eastern scotland and central and eastern england, it will still feel quite warm and humid with it and that could trigger a few sharp thundery downpours. the rain could be heavy

out to the south—west — we could see as much as an inch — and that will have an impact on the feel of the weather. 19 degrees in plymouth, 2a or 25 in london. the highest values maybe into east anglia of 27 if you keep that sunshine. and as i say, we could see some sharp thundery downpours. some rain into the north—west of england, gradually easing out of northern ireland by the end of the afternoon. a west—east divide continues across scotland — aberdeenshire might see highs of 20 degrees as we go through the night, the rain will drift north and east and heavy bursts for a time. a legacy of cloud sitting across england and wales — not that much in the way of rain here. and it will stay relatively mild and muggy through the night, with overnight lows into the mid to high teens. we could start on a grey note in central and eastern england for a time. brightening up behind. 0n the whole, sunday will be a relatively quiet day with some sunny spells. just a little bit showery rain into northern ireland and the risk of some isolated showers elsewhere. but a pleasant feel, particularly if you have that sunshine, in the sunshine with temperatures peaking at 23 degrees. into the early half of the week ahead, we see one weather front clearing through on monday, a ridge of high pressure building, but then another weather front

waiting in the wings. so we're back to this story that we've seen throughout the summer so far, with no two days the same, really. there will be some showers, some sunshine at times and again we keep that fresher feel.

this is bbc news. the headlines... travellers are feeling the knock—on

effects of yesterday's worldwide tech outage, with more flight cancellations today, despite computers being back up and running. almost 7,000 flights were cancelled globally on friday. a senior democrat has written in a us newspaper claiming joe biden didn't recognise him at d—day commemorations in normandy despite their long friendship. there are now at least 30 congressional democrats calling for the 81—year—old to bow out of the race. soldiers have been deployed to the streets of bangladesh after a day of deadly clashes between anti—government protesters and police. a national curfew has been imposed. and disneyland workers have voted in favour of going on strike amid complaints about low wages and intimidation by managers. disney insists it's committed to reaching a deal, with talks resuming monday. hello.

more now on the digital outage that's disrupted