hello, this is bbc news. the headlines... there have been violent clashes in hong kong, where some pro—democracy protesters have thrown petrol bombs and police have fired tear gas and water cannon. it is now evening in hong kong. protesters have been lighting fires and attacking a key government building, ripping down signs celebrating the forthcoming 70th anniversary of the establishment of communist china. the chancellor, sajid javid, insists his relationship with borisjohnson is "fantastic", despite downing street abruptly firing one of his special advisers, sonia khan. i am not going to discuss any personnel issues, it would be inappropriate.

i think my views are well understood. the relationship is fantastic with the prime minister. a trial date is set for khalid sheikh mohammad, who is accused of playing a leading role in plotting the 9/11 attacks in 2001. sport and for a full round up, from the bbc sport centre. the first of eight premier league games today is just about to get under way at southampton take on manchester united. southampton looking to make it back to back wins after beating brighton while united are aim to bounce back from their shocked last—minute defeat to crystal palace. arsenal defender nacho monreal hasjoined crystal palace. arsenal defender nacho monreal has joined the league at site real sociedad on a two—year deal. —— la liga side. new signing kiran ntini, who joined deal. —— la liga side. new signing kiran ntini, whojoined in the

summer, is seen kiran ntini, whojoined in the summer, is seen as kiran ntini, whojoined in the summer, is seen as his long term replacement —— kieran tierney. he won three fa cups for the club. in tennis, johanna konta is the last british player involved at the us 0pen singles after another co mforta ble 0pen singles after another comfortable win at flushing meadows. but british number two dan event is out of the men's event after being beaten by five—time champion roger federer. in one of the game's greatest arenas, this was dan evans for the first time. intimidating enough, even more so when first time. intimidating enough, even more so when you're greeted by two of sport's biggest superstars, basketball legend kobe bryant only stayed for the coin toss, roger federer seemed in equally no mood to hang about. he charged to the first set. evans was unable to keep pace. federer famously once described taking on evans as playing a mirror image, a compliment but no time to reflect a nd image, a compliment but no time to reflect and he was firmly in his

shadow outplayed and outclassed, dan evansis shadow outplayed and outclassed, dan evans is out. far better forjohanna konta. zhang shuai was in her way but not for long. the british number one was ruthless and unrelenting and never really troubled. a comfortable victory in a little over an hour. through to the next round. she might be the last great left standing in the singles butjohanna konta it seems is not slowing down. it was short and sweet for dan eva ns, it was short and sweet for dan evans, winning just five games against the five—time champion. the british number two was not happy at having to play early on friday, less than one day after his second—round match when federer had an extra day's rest. it's tough, isn't it. that wouldn't be the first time the higher ranked players has had pool, so higher ranked players has had pool, so to speak. but these guys, the

tournament once roger, roger going through that match rather than me so it is understandable.” through that match rather than me so it is understandable. i know there we re it is understandable. i know there were questions about do i have a preference but does not mean roger asks, roger gets. i've heard it too often now and i'm sick and tired of it, that apparently i call the shots. the tournament and the tv stations do. we can give our opinion, that's what we do. i'm still going to walk out, even they schedule me at four in the morning. an angry roger federer! in formula 1. an angry roger federer! in formula i, ferrari's charles leclerc has set the pace in final practice ahead of the pace in final practice ahead of the belgian grand prix tomorrow with sebastian vettel just the belgian grand prix tomorrow with sebastian vetteljust behind it but it was not a good morning for championship leader lewis hamilton who crashed out midway through the session and its mercedes team face a race against time to repair the car ahead of qualifying this afternoon. we will keep you up—to—date on that

on the bbc sport website but that is all the support for now. now it is time for click on the news channel. this week, another chance to watch our 1000th episode, when we made the bbc‘s first interactive multi—choice tv show. there were flow charts... elephants... flow charts... data... flow charts... and wizards! a warm welcome to click. welcome to click. welcome to click, i am spencer kelly. finally we have reached

a very special milestone. we have been on air every week of every year, without a break, since we launched in the year 2000, which means this week you are watching season 1, episode 1000. and to celebrate, we are making a world first. doing new things is in our dna. i am floating on air. which is why we don't just show you the tech, we use the tech to push the boundaries of what's possible on tv. here is the team. it is mark on camera one and two, simon on camera three and four, jen on five, nima on six and seven, ben on eight and this is thalia on nine. this was the world's first full tv programme to be filmed and edited

only on mobile devices. fyi, it was a nightmare! this week's click has been filmed entirely in 360 degrees. this was another world first, where we reinvented how tv was made, for an audience that could look in any direction at any time. and this week, for click 1000, we've really gone for it! do i explore the cave, or do i look behind the tree? i'll explore the cave. so, turn to page 8a. this is how i spent a lot of my childhood, reading books where i could choose my own adventure, where, at every point, i got to decide what happened next, and every time i read it, the story changed. i absolutely loved them.

not only was i in a different world, but because i was in charge of the story, that story came to life. it felt so real. come on then, spen. so, after choose your own adventure books came computer adventure games — first with text, and then with amazing graphics. but both would let me explore vast worlds, bigger than any book. the problem is tv doesn't let us do that. it tells one story, it makes one set of choices, and we just sit back and watch. until now. i demand freedom! imagine if everything that you watched was interactive, and if you could change your experiences depending on your mood,

your desires, or even how much time you had. if you go online at the address that's on—screen now, you will find a special version of this programme that is interactive. you get to choose which tech stories you hear about, and in how much detail. as you watch, you'll be given options to dive deeper, or maybe to look at things from a different perspective, or maybe to skip one entirely. the technology used to make this possible is known as object based media, or 0bm, and it could be the future of how we watch video content. broadcasters have been developing the tech for years now. bbc r&d has explored the concept with various online tutorials. the step—by—step nature of 0bm is particularly useful there. netflix has had a dabble with its puss in boots, and, more recently, with charlie brooker‘s interactive bandersnatch. and now, premiering the bbc‘s

first 0bm tv show is us. to say it's been a tricky, brain—melting minefield would be an understatement. it's a little bit like trying to pick up ants from space using tweezers, with a blindfold on. these are all the plans that we've made to figure out how we're going to structure this episode. and it's really a bit of a beast. doing 0bm is really not simple because you have to think about the stories in a different way, because people might have watched some bits of the story and not other bits, they might have chosen different paths through the story. i have been told to create 700 million versions. it has taken more brainpower than any episode i have ever worked on, and more teamwork, to get the thing out there. trust me, we're not talking to each other the moment! what does that stand for? wizard. but we couldn't have done it without r&d‘s

otherworldly expertise. matthew and his team have been devising an 0bm strategy for the last few years. a couple of years ago, we decided we wanted to kind of transfer this capability to create this stuff. we were busy engineering it, but we didn't have any tools. so, we decided to build a story kit, essentially. their custom—made software can handle hundreds of pieces of content, like video, audio and text, and put them together on the fly, as viewers make their choices. so, it's a tool that is aimed at producers who have no software development skills, so the whole idea was to allow these people to then easily use an interface like a drag—and—drop interface like story former, to create those experiences. all in all, we think we have 148 different chunks of video, which, to my mind, makes about a gazillion different paths through the content. there's also tons of footage, and we've used up every hard drive that we have.

i suppose it's been keeping me up at night, thinking are we going to get it finished in time? it really has been a challenging process. there's been times when i had to dojust like... but we think, we really think, it's been worth it. putting you in the driving seat will mean, hopefully, you at home can enjoy the show more than ever before more. at the core of being able to give you all these choices is the idea of branching narratives, possible options that lead onto the next bit, or reroute you to a part where the story can flow from there. to get advice on how to create our multiple—choice click, i went to meet one of the creators of the fighting fantasy books i grew up with, ian livingstone. it involves writing multiple storylines at once. and how i used to do it was create a map, which i kept a record of all the encounters as you went through the adventure. it's giving you a choice like do you want to turn left or right,

which is a simple choice, or do you want to try and tiptoe past the sleeping goblin or attack him with your sword. and the choices are quite varied. so, when i'm writing i have to keep a record of where the reader would go. so, if you make this choice, i need to make sure that they can actually get out of there, and then these are all the encounters. they find gold, they find treasure, they find magical items. can i show you our version of an adventure map? this is the layout of this actual interview, which is multichoice. what do you think? minimalist! not too many options, so we should be done in less than four hours. because it can take you days to get through a fighting fantasy game book. good luck on your adventure. but with great power comes great responsibility, i mean, do you really want to make decisions about the tv programme and films that you watch? would you rather just sit back and relax? and also, if you want to talk

to your friends about what you've seen, but they've seen a different version of the show, you don't have that common ground. and then there's another thing. through interactive experiences, it's possible to keep tabs on viewers' habits, and you may be giving out more information about yourself than you think. here'sjen copestake with more. extrovert or introvert? open to new experiences or more comfortable with tradition? we're using the data we collect while you watch the 0bm to deliver a specific advert to you. the choices you made gave us an idea of your personality. it's certainly not scientific, but when you try it out, see if we were right. researchers have worked out that even simple data leaks can give indications about your personality, with just 75 facebook likes being as illuminating as asking a work colleague about you. and with 300 likes, they can be

as accurate as asking your partner. you can infer some very private stuff even from this data that you think is not too meaningful. people's personality, people's intelligence, poeple's political views, religious views, sexuality, really private stuff, just because you like camping and a few other things. of course, we all recognise when facebook, google or instagram do this, showing adverts tailored to our behaviour. this can be good if you're looking for a specific item, but can also be a bit unnerving. people often say online advertising is creepy, so you are talking to a friend, then later on you see an advertisement for the same thing you were talking about. it mightjust be that you were talking to your friend, but then the fact you are talking to someone else, they may search for something, and then suddenly you are seeing an advert for something that they're interested in. they infer you are friends and therefore probably have similar interests. if all this creeps you out a bit,

we had a look to see some of the tools online that may help obscure your data trail. first up, you might want to get rid of the cookies stored on your browser. these store personal data like your login, emailaddress and what is in your shopping basket. clear the cookies from your web browser using the appropriate menu. in chrome, it is in the history settings. in safari, look in preferences and privacy to block all cookies or manage which ones have access. cookies aren't the end of the problem. other types of trackers can still follow you around. some ad—blockers and anti—tracking tools can show you who's watching. privacy badger from the electronic frontier foundation is free to add to your browser. it shows you which domains are following your online movements and lets you choose which ones to allow or block. ghostery flags more spying eyes. other services will help you stay on top of trackers, for a price. disconnect.me has a free basic service for desktop as well as smartphone apps. for $50 a year, you can get

a full vpn and tracker protection for three devices. still, even with all these tools, you may not be completely private or untracked. have a look at who tracks me. it shows some popular entertainment and news sites are crawling with unseen trackers. if, like more than 60% of us, you use chrome, it won't be easy to stop google keeping tabs on you. however, an alternative like mozilla's firefox is privacy focused. when you install firefox, you see the privacy settings it offers straight away. firefox is also the only major open source browser which means anyone can check its code, making it more trustworthy. finally, there are some more whimsical ways you can try and obscure your data. the go random plug—in lets you confuse facebook‘s snoopers, randomising your emoji reactions, preventing their ability to build a personality data profile. be warned, this might get you in trouble if you end up laughing at something awkward! another tool designed by ben grosser

is the demetricator. the demetricator hides the like counters on twitter and facebook so you aren't giving out data or being influenced by what others are liking. instagram made its own version of this too. that wasjen. so, how might algorithms change what you watch in the future on tv, based on your personal data? well, to simulate this, we have taken dan simmons‘ report on tech in malawi and tailored it for a viewer who we know is interested in inventions and the environment but who likes watching shorter reports. this could be the result. with an average income ofjust a few dollars a day, this part of the world is known as one of the poorest on the planet. what is less well known is how quickly malawi's two main cities, the capital, lilongwe and the commercial centre, here in blantyre, are expanding,

as are their horizons. malawi has a lot more high—tech than you might think going on. do you want to know more? well, how long have you got? researchers are developing artificial intelligence, creating smart homes, predicting health problems and making old computers work again, for the whole continent. in some ways, malawi's cities look and feel like many others there are plenty of shops and services, new buildings are going up but, importantly, there is a real need here for more simple tech that makes life better without the need for power. only a fraction of the country is actually on the power grid and even those who have it, well, historically it's been unreliable. demand far outstrips supply. and it gets hot here as well in the summer —

between 30 and 35, even now, at a cooler time of year, it gets up to the mid 20s. i'm on my way to meet a very cool inventor who specialises in sustainable tech. hey, addis. hi, dan. thanks for having us over. nice workshop! addis leads a team of half a dozen or so at his home in blantyre. all sorts of things are being hacked together here. it's a mash—up of ideas. this skeleton car will be on the road next month, i'm told, powered in part by steam. this tin can electric car uses phone id for security. and that's just one sim card that that works with? even addis‘s pottery wheel helps power things up. so, has anybody before called you a mad professor? with all of this stuff? well, yes, i've got quite used to that! in the heat of the day,

i've come to see a prototype addis is particularly proud of. well, this is the zero electric climate control system. the main thing here is what i call the cooling element. 0k. where it takes water and it presents it to the environment, right? so the heat and the environment help it evaporate. that process cools things down. it sounds very simple but there is a bit more to it than that, isn't there? here we have formulated materials that already are folded up so tightly that they shrink a large amount of space into a very small space, right? at nano scale. when we put water into it, that water can be spread out. and it can use up heat more efficiently to close it. what sort of results have you found by putting this prototype into various situations?

well, my neighbour here, for example, has one unit that he is using for the whole building. so, we have found that on one side of the building he had 28 degrees centigrade and on the side of the building where one of these climate control systems was installed, he had 25 degrees centigrade. right, time to test our water climate cooler. so, did the invention work, that's the question. well, you can find out by watching the click 0bm show online and choosing to watch dan's piece. of course, there are many more adventures waiting for you there as well. we are really proud of our interactive programme and we would love you to stop by and choose your own path through it. the address is on screen now, bbc.co.uk/click100. the address is on screen now, bbc.co.uk/click1000. we think it's a fitting way to celebrate our anniversary. there is another way, too,

of course, and that is to crack open the archive, look at the silly old tech and try and ignore the haircuts! hello, i'm stephen cole. a warm welcome to click online, the first of a new series for all those interested in new technology and the internet. in april 2000, the bbc decided to explore the exciting new world of the dot—com bubble! and, in a spectacular piece of timing, click online went on airjust as it burst. as online dog walkers and wine tasting services tumbled around our ears, the programme went looking for the next big thing. i told you i could do it. we didn't always find it... i forgot to change the batteries! but, every so often, we backed a winner. gmail is a free e—mail service. twitter.com is as simple as it gets. it's called bluetooth. the device, with some never

before seen features, has been billed as nothing short of revolutionary. we have met all sorts of amazing characters on our travels. it's me, mario! and i mean all sorts. la, la, la, la, la—la! hey! we pushed tech to its limits. 0h! sometimes we pushed it too far. we are going to build an artificial intelligence. and sometimes, it pushed back. they came here on a sort of gold rush, promised riches from waste which is slowly poisoning them. right now, over 20,000 compromised personal computers are under our control. it's been a pretty intense experience but the thing that it has really left me with is i want to hold onto my data.

over the past 19 years, we have built it. we have flown it. we have ridden it. we've broken it! we've worn it. even the electric shorts! wow! and we've played it. and, boy, have we played it! we've gone live... we've seen the very highest tech... this is a bit spiritual, really. and the lowest! over 1000 shows, it's been an enormous privilege, for all of us, to bring all of you the tech that's changed the world. refreshing! or not.

come on, percy. yeah, it certainly feels like we've seen it all but i have a suspicion that there is much, much more to come! on behalf of everyone who has worked on this programme over the years — and there have been many — thank you. thank you for watching and we will see you next time.

hello. it's the last day of august and the weather certainly has an end of summer feel about it. we've got some rain continuing to slide eastwards at the moment, and behind that rain band things are turning cooler. this is how it looks through the afternoon. still some heavy and persistent rain falling across the north of scotland. this band of cloud and patchy rain will continue to stagger eastwards across england. it is behind that band of cloud and rain that we get into the cooler fresher air with a mixture of sunny spells and showers. as we go through this evening we lose what's left of that band of cloud and rain from the south—east, all of us into the cool air. clear skies and some showers blowing into scotland and northern ireland, and overnight lows between eight

and 11 degrees. a much fresher night than we've been used to lately. so a cool start to sunday morning, quite a bright day in prospect with long spells of sunshine. still some showers into northern ireland, scotland, northern england, one or two perhaps sinking down into east anglia. further south and west, not as many showers, more spells of sunshine, but those temperatures just 13 to 21 degrees.

good afternoon. crowds of demonstrators have been gathering in locations across the country to protest against the prime minister's decision to suspend parliament. 0rganisers hope tens of thousands of people will take to the streets in dozens of towns and cities.