cyclone fani has struck india's east coast, with heavy rain and 200km/h winds. officials say the storm is expected to cause widepsread disruption as it makes its way north towards bangladesh. the un says north korea has cut public food rations to just 300 grams a day, following the worst harvest in 10 years. it estimates that more than ten million people won't have enough to eat. the south african athlete, caster semenya, insists she won't take medication to meet new rules on hormone levels, she was speaking after winning an 800 metre race in doha — her last before the rules take effect. peter mayhew, the actor who played the wookie, chewbacca in five star wars films, has died aged 7a. tributes have been paid by his co—stars. mark hamill who played luke skywalker said he was "gentle and kind".

now on bbc news it's time for click. this week, did some five geewhiz with superfast connections. connected cows and also the end of the world? whenever you're out and about, your mobile phone communicates with the rest of the world through these. calls, messages and data are sent from masts like this to hundreds of

phones within a few kilometres into each of those bones send calls and data back again. it's a lot of work for one mast to do and it kind of explains why if there are too many phones in any one area, things start to slow down. but it won't always be like this. our next mobile network will be the fifth generation, called sg. will be the fifth generation, called 56. and it will be very different to what's come before. one she was about the analogue phone, allowing us about the analogue phone, allowing us to make calls to one another. two g allowed us to do things like send sms text messages and do voice recording. 3g was about the promise of the smartphone, allowing us to access digital broadband services. and 4g, access digital broadband services. and ag, which is what we had since 2009, allowed us to do all those first three things but faster. 5g is like going from earth to mars. it's not a vast world, it's a different world. it's going to be a world that is connected, in which machines will

be talking to each other and talking to you. and to achieve that, we are going to have lots and lots of and ten a everywhere. from lamp posts, buildings, you name it, it's going to have an antenna on it. and that's because there are billions and billions of new devices waiting to be connected that will communicate with each other, work with each other and make our lives easier in ways that we can't yet imagine. tv, lots. they‘ re tv ways that we can't yet imagine. tv, lots. they're tv off, lots of. it will allow you to control your energy consumption in your smart home. it will allow your fridge to decide when to order groceries for you and have them delivered by a self driving truck. it will allow your dishwasher to decide when it washes dishes, your laundry machine decide when it washes clothes. so right now, we have to instruct our machines but in the 5g worlds, our machines but in the 5g worlds, our machines might decide to communicate directly to us or with each other.

the machines will start communicating simply to regulate the flow of human activity. your car is going to be connecting and thinking, interacting and communicating with every other sensor that happens that's walking down the street as it passes a building, plus a somebody ona passes a building, plus a somebody on a bicycle. information from a traffic light three blocks down that you can't even see it. it's going to be completely seamless. sg you can't even see it. it's going to be completely seamless. 56 will enable all these devices to have superfast data connections but we also need to be stable connections is one device hops rapidly between all of these antennae. 0ur rapidly? well, maybe this rapidly. this is the millbrook 5g tesla. 0ne well, maybe this rapidly. this is the millbrook 5g tesla. one of the things i'm testing here is how well 5g antennae can follow a moving target. there is an antenna and i'm the target. i am making a live video

called to the computer trackside which is actually really hard to do when you're moving at speed. at iao miles an hour, each antenna can only send stuff to my special 5g hotspot in the carfor send stuff to my special 5g hotspot in the car for about four seconds and so here, each one has to form a beam which targets the car exactly and then hands over the service sea mlessly to and then hands over the service seamlessly to the next antenna, all without interrupting the video stream. the kind of technology that blue wires is testing here will eventually enable high—speed trains to stay connected to the 5g network and provide superfast internet to their passengers. to coverjust this small area, they are using 11 antennae here so if you want to blanket the whole uk with 5g, you are going to need a huge number of the things. i mean, this is a

massive infrastructure rollout. and the scale of all this is something begin with around the world. in the us, verizon has stepped up its trials in us cities, albeit only of a small areas. speeds, when it works, are impressive, although the trials are said to have had some teething problems. cities in south korea and china could well get the first meaningful services but what about if you're not in a city? well, backin about if you're not in a city? well, back in the uk, jane cope steak has been looking at what 5g might mean for rural areas. in this idyllic patch of dish countryside, the birds are cheerfully singing in the cows are cheerfully singing in the cows are peacefully grazing. —— dish. but look closer and you will see there is something very different about these cows linking them to a unique experiment. this dairy farm in somerset is one of the first test spot spoke 5g in the uk. the cows

are wearing sensors in all its data is being sent to the cloud and then back to the farmer can make based on this data. almost every task on this farm can be automated. these cows are queueing up patiently to be robotically milk. this system allows the car to choose how many times a day and at what time it wants to be milk. the robot picks up on how much milk. the robot picks up on how much milk is coming from each of the cows ardours and can control the sensitivity of the milking as well. the cows here come and go as they please, with little human interaction in their movements. so one of these cows has just taken itself for a massage. the feeding system is also done by machine and that's not all. there is even a robot that scrapes up sacrament, putting it into these channels which can quietly operate around the cows so can quietly operate around the cows so as not to disturb them. duncan forbes runs the farm. he's been working with cisco on this project which is part of the uk's 5g rural

first strategy. the farmers to demonstrate how 5g would help and together the many different points of data across a herd of cows. the latency and the ability to cover large distances with 5g means that the cows can be monitored in real time, even if they are grazing in the field. what senses is she wearing? can we see any of them? on the collar, there is a little black square that says silent herdsman on it so that's one of the senses and it's an activity monitor. like a wearable, like a watch. yes, but the sort of thing it does is tell you when the cow was eating, so when a headis when the cow was eating, so when a head is down, it says 0k. she's got the green one, the transponder underneath her chin. and that's the one that controls the gates and so one that controls the gates and so on inside the building. it's an electronic identity. the third one is just electronic identity. the third one isjust inside her rear, the electronic identity. the third one is just inside her rear, the little white button on the top of the rear

is holding the sensor. so these cows have got more senses than you would necessarily have on an ordinary cow because we are trying it out, we are testing them and we are checking out the conductivity. we are on a dairy farm and we are using the technology to help us with our animals but were also going to have sensors around the fields telling us what the soil moisture is, what the temperature of the soil is, measuring the grass growth using satellites or hyperspectral imaging entering how much grass we've got but also saying, maybe we don't need to use quite so much fertiliser. sg saying, maybe we don't need to use quite so much fertiliser. 56 could revolutionise the farming industry, connecting not just the revolutionise the farming industry, connecting notjust the uk farms but farms around the world so best practices can be compared and new techniques developed. imagine if you would be able to cross correlate data, not only about how a cow is doing well, if it's sick within the farm but also multiple farms across multiple areas. imagine what you could get if you were able to manage the robots based on the best

possible efficient way of doing it instead of just possible efficient way of doing it instead ofjust within a farm. one of the biggest challenges for farming worldwide is the expected increase in world population where we are going to need to produce 70% more food than we were producing in 2009 by 2050. that's a massive increase. we got to produce that food without additional impact on the environment, preferably less. byproduct of bringing the 5g network outside of cities could be a revolution in connection speeds of the countryside. a recent national farmers' union survey showed only 17% of farmers' union survey showed only i7% of respondents reporting and a lack —— reliable outdoor mobile single and i6% saying they had access to superfast broadband. pharmacy hope to make a strong economic case for bringing connectivity to all parts of the country, no matter how remote. —— farmers here hope. hello, welcome to the week in tech. the drone has for

the week in tech. the drone has for the first time delivered a human organ. surgeons in maryland received a kidney transplant from about three miles away. and facebook ceo mark zuckerberg announced new measures to improve users privacy as he laughed off his compa ny‘s improve users privacy as he laughed off his company's recent failures. the strongest reputation on privacy right now. updates include a friendfeed free of adverts and an encrypted messenger service. meanwhile the uk government is preparing to plan new laws that will mean all internet connected devices need to have cyber security features built—in. it proposes all devices sold in the uk come with unique passwords, state how long they will receive security updates for and provide contact details to report vulnerabilities. we may have seen ai generated bases before but how about entire ai generated people? well, meet this lot. these photorealistic

images by japanese company data meet this lot. these photorealistic images byjapanese company data grid come complete with faces, hair and even outfits. and finally, if you haven't worked up an appetite for lab—grown meat, then how about a spot of lab grown fish? singapore start—up she0pmeat won't be scrimping on the shrimps after raising $a.6 million. but are you ready to dive in? to build the 5g network, you need a new type of telecoms gear. you need many more base stations and the need to be smarter. it is the chinese tech company huawei which makes the most advanced 5g gear but this has been making western governments nervous so i've come to find out who are huawei. it may look like paris but

this is huawei's brand—new campus in shenzhen, china, a huge site where employees take a train between office buildings, each of which is modelled on a different european city. you journalists have visited this disney world —like project, very much the brainchild of the founder of huawei, who is then compared to the likes of stevejobs, growing his company from a small workshop into a tech giant employing 180,000 people. huge spending on research means huawei claim they are 110w research means huawei claim they are now 18 months ahead of any other 5g manufacturer and that includes not just getting faster and faster data speeds but dealing with the problems that come from higher performance. so this is the 5g base station. the

5g power is around 1000 watts. so this is the 5g base station. the 56 power is around 1000 watts. and how much bigger is that than orgy a station? orgy base station averages 300 watts. so it's three times larger. this is three times as much power, so it gets hotter. yes, much hotter. is a common problem in technology. as things get faster and they consume more power, they get hotter and new cooling techniques need to be developed. this is nuclear —— liquid cooling cycling. is that liquid cooling? it's bubbling and boiling. here, they are learning how different designs and materials can change the speed and direction that heated air flows away from the components. and he was an experiment to try and keep everything at a stable temperature, by either applying heat or cold on demand. that's cold. yes, that's

hot. huawei is currently enjoying huge success with revenues last year in excess of $100 billion. but this is also a company facing some serious issues. the biggest is that the us is coming for huawei in a big way. we have met the enemy and it is huawei and it is china, make no doubt about that. right now, huawei, through access to unlimited capital from the chinese government, the communist government, all of this technology, guess what, it's built infor technology, guess what, it's built in for cyber spying, for cyber espionage because that's what the chinese do. the problem is, mr ren was once a member of china's people's liberation army and that's raised suspicions about his links to the chinese state and whether it and huawei make have each other‘s backs.

in 2017, china past the national intelligence law which says that if asked, all chinese companies and citizens must help the government to assist national intelligence habits. china clamps as part of an effort to safeguard its security. but the fear is that if diplomatic supplies any countries 5g, the chinese could exploit it. to help the government decide whether huawei should be in the u.k.'s 5g network, the british security service has a special unit devoted to looking at the potential risks posed by huawei. it is overseen by doctor ian leavy, his job is to defend the uk against digital attacks. he rarely gives interviews. does huawei pose more of a security risk than other companies that supply the network instructor? i think what we're talking about is,

assume that charlie stayt wants to attack the uk telecoms adverts. 0ur job is to make them workjust as ha rd regardless of job is to make them workjust as hard regardless of whether or not we use huawei. many people think the chinese dad would love to eavesdrop on other countries. if we left huawei into 5g, is at a real danger? it's now more likely to have spying or communications in 5g that it is in forgery, and anything that is critical, business and personal communications should be included. all of the communications from your bank and a smartphone, they are all encoded because you don't want to trust telecom setbacks. so someone is as in, they will get nothing? it's a is as in, they will get nothing? it‘s a semi— is as in, they will get nothing? it's a semi— critical stop in business in government. according to gchq, the threat of spying with her so much about recent is overblown. there is another threat they take

very seriously. in a future where our entire infrastructure, our economy and our lives are run by computers talking to each other over a5g computers talking to each other over a 5g network, what would happen if someone shot that that for down? a 5g network, what would happen if someone shot that that for down7m you think about it, the future of wa rfa re you think about it, the future of warfare is not necessarily going to be using traditional armies in the way that we think of luck with the second world war, the future of welfare is most likely going to be cyber so without firing a shot, you could take a country out. it is feared that the chinese state could order huawei to build secret backdoors in a 5g network. this would leave the culturally vulnerable to a nationwide cyber attack. and that could be catastrophic. what we are about to show you is what experts have told us show you is what experts have told us could happen if the u.k.'s 5g network was attacked in the not—too—distant network was attacked in the not—too—dista nt future.

network was attacked in the not—too—dista nt futurelj network was attacked in the not-too-distant future. i don't know, the station has a shut for nearly an hour. there is no information, no buses. it's a nightmare. tell me about the travellers was to m11 has complete this stopped, the ma was complete the backing up. nothing. can i get through traffic please? can you hear me? the traffic is gone crazy. michelle? are you still there? i've got police and ambulances stucco, the national grid has shut down, is a terrible mess. within the last hour bbc news has received hundreds of reports of widespread disruptions across the uk. numerous services being

affected. it's just flushing, uk. numerous services being affected. it'sjust flushing, i don't know what's going on. it's just not driving. many roads are blocked afterjudgement just not driving. many roads are blocked after judgement after a variety of self driving system is deactivated. the government is advising only to travel if absolutely necessary. many shops that had to close due to being unable to take payments after the pain that back went down. the ultimate cause of the disruption is yet to be confirmed. what's going on?, yet to be confirmed. what's going on?, get the feedback up? they are off—line. on?, get the feedback up? they are off-line. we are hearing the smart grid has been overloaded and power supplies are being hit nationwide. everyone is turning their appliances on and off randomly. national grid are going to shut down midlands and the north. lights on.

tv on? this is an emergency. this is a worst—case scenario but it is possible. so, huawei the foreign customers to beijing backed attack? the chinese government expressly requires all chinese companies to strictly follow local laws in every country they operated. the chinese government has never and will ask

any chinese enterprise to install backdoors. i can say with certainty that huawei has never installed backdoors and its equipment in the past and neither will be do such a thing in the future. but, the latest gchq backed report published in march found there are security holes in the equipment of huawei. what was the overall result of your report into huawei question mark the security engineering is unlike anything else. it engineering like it's back in the year 200a stoppages very, very shoddy. and it leads to cyber security issues which we need to manage the long—term. cyber security issues which we need to manage the long-term. do you have any evidence of the vulnerabilities that are in the product were put there deliberately? we do specific assay that we don't believe things we are reporting on the evidence of chinese issues. as for engineering.

for engineering and bad software practices come in many guises including incorporating other companies code which itself, isn't safe. the reason you have to be so sure of what is in a build of softwa re sure of what is in a build of software where all the components are going to the software, is precisely because these days all a lot of the software is from third parties. you need to be sure that when you buy a bit of equipment that is running a bit of software, that the person that has built a sofa for you has done their due diligence and they know precisely what they put in and check that is secure. the problem is, however these vulnerabilities get into a network, whether deliberately or because of bad engineering practices, they can still be used to attack it. diplomatic don't deny that there are problems with the security. they have told us that they will release more detailed plans on how they will address them early in the summer. you don't need to spend a lot of

time in china to see the powers definitely just a few time in china to see the powers definitelyjust a few decades ago, this was a fishing village. today it isa this was a fishing village. today it is a mega— city of around 13 million people, home to china's tech revolution and transformed by china's ability to push things through without consultation with its citizens or its companies. within the last year, every single taxi and bus in the sonoma city has gone electric. this, just one result of china's ability to push things through. while the uk has been anguishing over h is true, thousands of miles of high—speed rail have been built linking the country. it's clear the chinese are making massive strides in high—tech. we are being told that in ten years time we will regret that it in but conversely, in

ten years time, might we regret not riding the wave with them? it's fair to say that china's time has come. hello there. it feels like our weather has gone a bit weird, what with the 21 celsius we had in february, and now snow in may. yeah, that's what we've seen over the last 2a hours. some wintry showers in scotland, snow settling on some of the northern hills. you see those wintry showers feeding in behind this line of rain, which is a cold front heading south across england and wales. don't be surprised over the next few hours if we see some of that rain

get a bit heavier and perhaps turn to snow over the hills of wales, even. wintry showers continue to feed in further north in scotland, with further snow to be spotted here. it is the brisk winds which will prevent a frost from falling for most of us, but where those winds fall off in the countryside, the odd patch of frost is possible. and for the weekend, big, dramatic skies like these. sunshine and cumulonimbus clouds. when the clouds come across the sky, combined with the cold and windy air, that will make the weather feel really quite chilly. out of the winds, in the may sunshine, where the winds are lighter, perhaps more to the south—west, feeling fresh more than anything else. not too bad. mixed fortunes, really. saturday, the lion's share of the showers coming across northern and eastern scotland, driven by the strong and cold northerly winds. those winds putting the showers onto the north sea coasts as well. we will get a number of heavy downpours, a bit of thunder mixed in with some of these. inland, fewer showers. lighter winds and may sunshine,

perhaps not feeling too bad, really, with temperatures up to 1a degrees and those strong winds around the north sea coast, you'll be doing well to see temperatures reach double figures. disappointing for may. heading through saturday night and into sunday, still showers around, especially across northern areas, and another chilly night. we could see a few patches of frost. five degrees in london, three in cardiff and two in edinburgh. sunday's forecast, the wind coming from more of a north—north—westerly direction, more from iceland, really. that will change who sees the showers. for example, showers continue for northern scotland. at the same time we could have an odd shower sneaking in through the north channel to affect north wales and perhaps north—west england as well. after a sunny start it tends to cloud over and it will be a coolish day, 10—13. bank holiday monday, a greater chance of seeing showers across inland areas as a trough makes its way south,

bringing those showers inland. if anything, the temperatures will be dipping down again. highs of eight degrees in aberdeen. that's your weather.

this is bbc news. i'm reged ahmad. our top stories: cyclone fani hits india with 200 kilometre an hour winds. it's heading towards kolkata and bangladesh after leaving widespread damage and disruption across the east of the country. the un says north korea has cut food rations to just 300 grammes a day, following the worst harvest for a decade. pomp, prayers and pageantry — we'll have the latest as thailand witnesses the coronation of its new monarch, king maha vajiralongkorn. caster semenya says she won't take medication to comply with new competition rules after racing to victory in doha.