the headlines: as fires continue to burn in the amazon rainforest, brazil's military chief says his government is in talks with four countries offering help: chile, israel, ecuador and the united states. the development comes just days after brazil's government rejected a previous offer of money from the g7 countries. the hong kong authorities have intensified their crackdown on dissent in the region. police conducted a wave of arrest, among those being detained were the prominent pro—democracy campaignerjoshua wong and agnes chow. they've both been charged withjoining and inciting others to join an unlawful assembly. the co—founder and chief executive of twitter, jack dorsey, has had his own account hacked. a series of erratic and offensive remark including racial slurs appeared on his twitter account for around 15 minutes and could be read by his more than 4 million followers.

is the process of becoming a british citizen too complicated and costly? that's the question a cross—party group of mps is asking, as the government reviews how the process works. currently, people hoping to become uk nationals have to pass a test about life in the uk, but is it too difficult? our home editor mark easton has been to wakefield to find out. # god save our gracious queen... around 150,000 foreigners are turned into british citizens every year, often at a ceremonies like this one in wakefield. but becoming british takes at least six years and, typically, can cost between £5,000 and £10,000, making it among the most laborious and expensive in the world. i will be faithful and bear true allegiance... the home office even charges an extra fiver to take the oath! ..to her majesty the queen, elizabeth ii. ..

the government is reviewing parts of the citizenship process so a good time to ask, how difficult should it be to become british? what does a good british citizen look like? and what does it mean to be british? with the help of research company britain thinks, we've assembled a jury of british citizens in the old courtroom at wakefield town hall. six born and bred here and six who havejust become british. all new citizens must pass a life in the uk test so we thought we would test our jury's knowledge of britain. first, simply colour in the union flag. i've got the right colours but maybe not in the right places! i quite like that as a flag. completely wrong but quite nice! worth a try. would—be uk citizens are also tested on their knowledge of british history. the repeal of the corn laws in 1846 was designed to do what?

and geography. can they locate glasgow, cardiff and norwich on a map? all of which poses another question — is the life in the uk test a good measure of someone's suitability as a citizen? that's horrendous! that was harder than my 0—level in history! we can't answer half of the questions and we've lived here all our lives. anyone disagree with that? yes, i do. i do disagree because if you want to live among certain people, you have to know something about them. next we challenged our two groups, citizens new... it's a little too brewed, i think. ..and long—standing, to make what they regarded as a traditional british cup of tea. always add the sugar in afterwards and the milk in afterwards as well. is that important? yeah, it tastes different. some people say put the milk in first. no. if they don't have a spoon, they put it in first! cunning! it's been suggested that

new citizens should feel a sense of responsibility to volunteer in their local community. do you think that's right? no. no? no. why? because they don't even know the place, they're not familiar with it. what makes you better than me that i have to do it and you can't? it should be an option, if you want to do it. there is one british attribute often mentioned. how important it to know how to queue in britain? very. i think it's the most important thing out of the whole thing we've discussed! as soon as they come out of the airport, let's teach them how to queue! queueing is key! how should a british citizen behave? among the government's official suggestions — introduce yourself to your neighbours, keep your garden tidy, and only put your dustbins out if they are due to be collected. now, advice like that does seem, well, very british. mark easton, bbc news, wakefield.

now on bbc news, as click passed 1,000 episodes, they celebrated by creating the bbc‘s first—ever interactive tv show, harnessing the power of a new technology called object—based media. this week: another chance to watch click‘s this week: another chance to watch click's 1000th this week: another chance to watch click‘s1000th episode. there were flowcha rts, click‘s1000th episode. there were flowcharts, elephants, flowcharts, data, flowcha rts flowcharts, elephants, flowcharts, data, flowcharts and wizards. theme music.

a warm welcome to click. welcome to click. welcome to click, i'm 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 1,000. and to celebrate, we are making a world first. doing new things is in our dna. i'm 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's the team. it's marc 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 1,000, 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 ever 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. doing 0bm is really different because you have to think of the story in different ways, because people might have seen other bits of the story, they might have chosen different path 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 try and 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. 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. 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. 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 create 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, on 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, they've seen a different version of the show, you don't have a common ground. and then there's another thing. through interactive experiences, it's possible to get tabs on viewers' habits, and you may be giving out more information about yourself than you think. here is more. extrovert or introvert, open to new experience, or more comfortable with tradition? we're using the data you 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, as accurate as asking a partner about you. you can infer private stuff from data you might think is not too meaningful. people's personality, people's intelligence, political views, religious views, sexuality, just because you like camping and a few other things. we all recognise when facebook, google and 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 say online advertising is creepy, you are talking to a friend, then later on you see an advertisement for the same thing you are talking about. it mayjust be that you were talking to your friend, but then the fact you are talking to someone else, they may search for something, then suddenly you are seeing

an ad 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'll look to see some of the tools online that may help obscure your data trail. you might want to get rid of the cookies stored on your browser. these store personal data like your login, email address 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, choose preferences and privacy to block all cookies or manage which ones have access. cookies aren't the only problem, other types of trackers can follow you around. some anti—tracking tools can help. privacy badger by 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 whotracks.me, it shows some popular entertainment and news sites are crawling with unseen trackers. if, like 60% of us, you use chrome, it won't be easy to stop google from keeping tabs on you. however, an alternative like mozilla's firefox is privacy—focussed. when you install firefox, you see the privacy settings it offers straightaway. 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 rando 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. 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've taken dan simmons' report on tech in malawi and tailored it for a viewer who we know 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's 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. and malawi has a lot more high—tech than you might 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's plenty of shops and services, new buildings are going up, but importantly, there's a real need here for more simple tech that makes life better without the need for power. only a fraction of the country's 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 summer, 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, adis, thanks for having us over! hi. nice workshop. adis leads a team of around half a dozen or so at his home. all sorts of things are being hacked together here. it's a mashup of ideas. this skeleton car 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 adis' pottery wheel helps power things up.

so has anyone before called you a mad professor? with all of this stuff? well, yes, i've gotten quite used to that. in the heat of the day, i've come to see a prototype adis is particularly proud of. this is the zero—electric climate control system, the main thing here is what i call the cooling element. 0k. well, it takes water and presents it to the environment, right? the heat and the environment help it evaporate, that process cools things down. it sounds very simple, but is there more to it? 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 nanoscale. when we put water into it, that water can be spread out. and it can use up heat more efficiently.

to close that. right! time to test our water climate cooler. a neighbour has one he is using the whole building stop on one side of the building he had 20 celsius and on the other side of the building where one of these climate control systems installed, he had 25 degrees. 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. of course, there are many more adventures waiting there for you, too. we're really proud of our interactive programme and we would love you to stop by and choose your own path for us. the address is on screen now.

we think it's a fitting way to celebrate our anniversary. there is another way too, of course, that's to crack open the archive, look at the silly old tech and our old haircuts. welcome to click 0nline, 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 dotcom bubble. and, in a spectacular piece of timing, click 0nline went on air just as it burst. as online dog walkers and winetasting services tumbled around our ears, the programme went looking for the next big thing. robot: i told you i could do it. we didn't always find it. uh—oh, i forgot to change the batteries! but every so often,

we backed the 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—seen—before features has been billed as nothing short of revolutionary. we've met all sorts of amazing characters on our travels. it's—a me, mario! and i mean all sorts. la—la—la—la—la, hey! we pushed tech to its limits. 0h! sometimes we pushed it too far. we're going to build artificial intelligence. and sometimes, it pushed back. they came here on sort of gold rush, promised riches from waste that's slowly poisoning them. right now, over 20,000 compromised personal computers are under our control.

it's been an intense experience, but the thing it has really left me with is 'i want to hold onto my data'. over the past 19 years, we have built it. we've have built it. we've flown it. we've ridden it. we've broken it... we've worn it, even the electric shorts. wow! and we've played it. boy, we've played it. we've gone live. we've seen the very highest tech. this is a bit spiritual, really. and the lowest. over 1,000 shows, it's been an enormous privilege for all of us to bring all of you the tech that's

changed the world... mmm! refreshing. ..or not. come on, percy. upbeat sax music. 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's worked on this programme over the years, and there have been many, thank you. thank you for watching, and we'll see you next time. theme music. we start the weekend on an unsettled note thanks to low pressure to the north and west of the uk, it has brought a lot of rainfall to part of scotla nd brought a lot of rainfall to part of scotland and northern ireland during the course of friday. a wet start to saturday across northern and western areas, quite breezy ahead of it, dry but that weather front will continue to move its way eastwards through the day, tending to fizzle out by the day, tending to fizzle out by the time it reaches eastern england, and behind its guys brighten up nicely. a few lottery showers in the north and west, the odd heavy one

and cooler air beginning to set in here. 20—23 or 2a across the south—east, that is the last of the warmth for now, but the weather front warmth for now, but the weather fro nt m oves warmth for now, but the weather front moves through during saturday night into sunday, we are into a much cooler, fresher collar maritime north—west, that will be noticeable as we wake up on sunday to a chilly start, plenty of sunshine around, what of showers to the north and west of the country, a few also across the midlands but southern areas should stay dry. temperatures 11-20, areas should stay dry. temperatures 11—20, much cooler than of late.

welcome to bbc news. i'm simon pusey. our top stories: days after turning down money offered by the g7, brazil accepts foreign help to deal with the fires in the amazon. hong kong police arrest protesters and pro—democracy lawmakers. the crackdown continues with a demonstration planned later on saturday now banned. a trial date's set for khalid sheikh mohammed, accused of playing a leading role in planning the 9/11 attacks. and hackers briefly take over the account of twitter‘s chief executive, posting a string of offensive remarks to jack dorsey's 4 million followers.