south across what weather sinking south across scotland. hyne that, and cold northerly winds. wintry scotland. hyne that, and cold northerly winds. wintry showers beginning to develop. old enough for a frosty. more cloud southwards. not as cold as we go through tonight into tomorrow morning. tomorrow our weather fronts continues to sink south. behind it brighter skies but some wintry showers, rain, sleet, hail, even some snow. temperatures in aberdeen only three degrees. that cold air sinks southwards to all parts for the middle of the week with sunny spells and some wintry showers. hello. this is bbc news. the headlines: jeremy corbyn refuses to confirm that labour would renew britain's trident nuclear deterrent, if it winsjune‘s general election. voting is under way in the first round of the french presidential election — candidate francois fillon has cast his vote. a murder investigation has been launched after man was killed by thieves who stole his car from outside his house in manchester.

mary keitany of kenya has run the second fastest women's marathon of all time in london. the men's event was won by her fellow kenyan, daniel wanjiru. the ethiopian runner, kenenisa bekele came second. now on bbc news — click. this week: how to stare at your phone and change the world. strawberries in a massive box. and — fancy working in an enormous train station? i don't know if you have noticed, but there seems to have been a lot

of election talk of late. this week, click is taking a trip to paris, where this weekend, the french take to the polls in the first round of their presidential election. and curiously, from a technology point of view, the way we vote seems, if anything, to be going backwards. in the last election, france did allow online voting for those living overseas. but not this time. for both the presidential elections and the legislative elections, injune, it is back to pen and paper. and that is due to the fear of cyber attacks, which the french national cyber security agency says are an extremely high risk. queues of people, paper voting — surely there has to be a better way. well, we asked bbc newsbeat‘s political editor jonathan blake to have a look. ancient institutions and modern technology. the two do not always go together.

as elections are held worldwide throughout 2017, that could radically reshape the political landscape, most people will cast their vote in the same way it has been done for decades, using a pencil and paper to put a cross in a box. in the uk, election turnout has fallen steadily. those campaigning for online voting say the system is stuck in the past, and it is time to digitise our democracy. it would make politicians pay attention more to the groups that would be enfranchised by this method of voting. so those groups would be young people, because they are the ones who engage most online, and groups like people with disabilities, or with vision impairments, of whom there are 2 million in this country, voters abroad, and the armed forces. if they have this accessibility to voting, politicians will have to listen to them. one company is working on a way to make voting more convenient and, they say, more secure,

with an app that lets you register and vote by selfie. it uses facial biometrics, and combines that with some sort of government document, whether it is a passport or driver's licence, to create a digital identity, which the voter is in control of. so this is a demonstration version of the app which smartmatic have made. we will start by registering, first of all. it is asking me to take a selfie. the next stage is to add photo id. we will go with driver's licence, because i have that handy. once the id is matched to your face, the app confirms you are registered to vote. and we are voting for rushfield borough council, which is not a real place. it is asking me to take a photo, so i hold up a camera and the phone will take a selfie automatically. so here there is a list of candidates, the same as you would see on the ballot paper. i don't need to tell you who i'm voting for, so i won't.

i will pick one at random. and that's it. it says you have cast your vote successfully, and it has given me a unique receipt number, which i can either copy or send to myself by e—mail. you are asking people to take a photo of their face, capture an image of the photo identification. how secure is that information, where does it go? the digital identity you create is unique to you, and it stays on your device, on your personal mobile phone or tablet, whatever you use to take it. it doesn't get stored anywhere. you are in control of it at all times, and you are in control of what pieces of information you use to create that id, and who you share it with. when it comes to security, we apply non—standard, additional layers of security, in terms of really strongly encrypting the vote on your device, to add that additional layer of protection. but concerns about cyber security mean countries once embracing the use of technology in democracy are having second thoughts. in the netherlands, where the voting system has been computerised

since 2008, this year they are counting votes by hand. but the country that has earned a reputation as the electronic voting capital of the world is sticking to its guns. estonia is almost sensitive about its digital identity. here in estonia, everyone from the age of 15 carries a government—issued photo id card. using this, and accompanying pin numbers, you can access your bank, phone company, energy firm, and a lot of official information. you can see this man's name, address, date of birth, where he went to school, health records, everything down to what car he drives. in estonia, voting isjust another thing you can do online. download software, use id card and pin to make a selection, and vote from the comfort of your home, or wherever is convenient. around one in three votes is now cast online, but officials admit it has not boosted turnout.

the internet voter is a transformed paper voter. having a novelty, a convenient method of voting, is not enough to bring people from the "no voting" zone back to voting, or to voting. of course, you need other incentives. you need policy, you need a reason to vote. i think it is interesting, but it needs proper security, and right now the measures are not good enough, in my opinion. using the smart id we have, it is easy, and quick access to everywhere. i have used it, and i think it is very useful. and it is very convenient, so i don't have to go somewhere to queue. other countries seem reluctant to follow estonia's lead. the british minister responsible for elections told me the government is looking only at taking very small steps. they have identification cards, and they keep the systems. —— the amount of data they keep,

it is a very different space to what we have in the uk, where they don't have a privacy agenda, about protecting individual citizens' rights, and protecting their own data. people are happy to do their banking online, shopping online. why not use technology to enable people to vote more easily? going forwards, we have got to make sure that, while we embrace technology and we embrace things like online registration, online voting is a situation where, if we believe the current paper—and—pen method is the best way forward, then actually, it means that each individual‘s vote is counted equally. 0ne voter, one vote. as technology advances, calls to digitise democracy will continue, but so will concerns about cyber security, so the pencil and paper may well always have its place. that was jonathan blake, and while technology may not be applied to voting at these french elections, it has certainly been

causing a stir in other ways. keen to draw attention to his campaign, far—left candidate jean—luc melenchon took to the stage this week, addressing a crowd of 6000 at a rally in dijon, but at the same time appeared at six other venues across the world. they call it a hologram. we call it smoke and mirrors. it is not the first time politicians have used this tech to further their agenda. india's pm, narendra modi, used it during his campaign, and the turkish president, recep tayyip erdogan, used his avatar to appear at a meeting he couldn't make in person. 0ur political journalist saw melenchon‘s first meeting. it was a weekend in france. in lyon, with marine le pen,

and there was at the same time a big meeting with emmanuel macron, in lyon, as well. so he knew that he was not the top politician, so it was a matter for him to be... to stand out. yes. now, we have seen the pepper's ghost illusion before on click, even allowing me to get down with psy in korea. but its use by melenchon allowed him to address six venues simultaneously. a custom rig of 17 lights. the trick was to arrange film lighting, which is pretty much identical to this, on a truss, a picture frame truss, very similar, and angling and lighting the stages, all around the destinations you are broadcasting to. a camera in front of the stage

filmed a wide shot, and the signal was broadcast over satellite to five french cities, and reunion island, off the coast of madagascar. do you feel that this is the way that elections will be fought in the future, with holograms and technology and showmanship? no, i don't think so. i think it is really a coup for melenchon. the media were already there, to see and to speak about it. i don't think that it is the way of making politics, for the future days. but will this tech really help connect voters to politicians, or is this transparent projection just a gimmicky barrier that gets in the way? egalite, oui! welcome one at all to

the church of facebook. this is f8, the company's development conference, —— developer. which this year is being held in sanjose. i am here to find out what mark zuckerberg thinks we will want in the years and decades to come. i will start with the stuff that is happening right away. facebook, you will no doubt have noticed, is locked in a battle over augmented reality tools like this. they battle with snapchat. you can have a second coffee mug, so it looks like you are not having breakfast alone. facebook also launched spaces, a place to interact with avatars of your friends in virtual reality, when you can't hook up in real life. the company is also releasing these curious little cameras for capturing real—life scenes in full, high—quality 360. the innovation here is the ability for the camera to record footage which has depth.

it allows what is known as six degrees of freedom. i can lean in and peer around, even though the camera which took the footage i am seeing hasn't actually moved anywhere. in the past, you were frozen in the middle of a world, as if you were seeing a painting on the ceiling. we wanted you to actually be able to lean in, and actually see the depth. and here is a neat little trick. the depth perception also means you can add a kind of green—screen effect, without needing a green screen. once you have that information, it is really built on the fact that you have captured the depth. you not only know the colour of that flower, you know how far it is away, and you know how far the ground behind it is away. and you can just subtract the ground away and replace it with grass, instead of rocks or bark. f8 is also about thinking what may be coming much further down the line. this little helicopter is another one of facebook‘s attempts to bring connectivity to difficult—to—reach places.

it is tethered to the ground, but once in the air, it can beam internet to an area below, perfect for helping people in disaster zones. they have made it in conjunction with a san francisco—based start—up. the idea is to basically build instant infrastructure. so it is an aircraft on a tether, where fibre and power run up essentially the longest extension cord you have ever seen. so, in an earthquake or a hurricane, you can send up in the sky and instantly provide internet to all the people who need relief, and can't be reached because of disaster. and then, just when we thought the new ideas were over, things got weird. what if you could type directly from your brain? even something as simple as a yes/no brain click would fundamentally change our capability. it is many years off. they may never be able to do it. but this is the plan. hardware and software that would allow you to post to facebook

without moving a muscle. so that's it for another year. and as they pack up, we are all left pondering the question — do i really want to plug facebook into my brain? now, back to paris. and how would you feel about renting your car to a complete stranger? well, believe it or not, here, there is an app that lets you do just that. drivy has been operating for six years. over 40,000 car owners have chosen to list their cars on the platform, mainly in france, germany, and spain, racking up 1.5 million days of rentals. the app gives me a list of vehicles available in the designated area on my chosen date. and then i can swipe through pictures and details of each car. yeah, it's basically

airbnb, but for your car. kind of carbnb, i suppose. right, first impressions of the drivy office, it's maximum start—up. table tennis, check. sweetshop, check. writing on the windows, check. but how has this company persuaded thousands of people to loan their cars to others? i don't know whether it is because i'm british, but i think it's a crazy idea to randomly hire my car out to other people. do you not think that no one will partake of this, because of the risk of damage and having your car stolen? we definitely knew from the start that it would sound like a crazy idea to lend your car, to most people. the question was, would some people agree it was a good idea, and efficient, and how do i protect these people who are willing to try, rather than convince the majority? do you think there is a reason why sharing services do very well here? yeah, i think that france

is special, because it has the right mix of being, like, still a rich country, where the law is rarely enforced, where business is going well, with still a mediterranean culture. so i think it's the right balance for each sharing economy to thrive. —— law really enforced. british and americans are more scared about lending their cars. i'm not really sure, i don't know, but i heard that you teach kids "stranger danger" in britain. and that is something that i absolutely don't know in france. so maybe less trust of people you don't know, and less willingness to share time, or things, with other people. you have been to london, then, clearly. you've described london. can you find a lost car? can you geo—locate it? with drivy 0pen, which is our big technological focus, now, we can geo—locate cars, see where the car is going, how it is doing. you can use the accelerometer to see

if there were impacts. so you can do lots with technology. and basically, the future which is coming, which is all about connected cars, and then autonomous, cars is playing huge in ourfavour, because increasingly, the amount of data you have on the car, the control over the way it's driven is going to increase until it's autonomous, and then who is in the car is no longer a problem, except for sandwich crumbs or stuff like that. in their early stages, start—ups like drivy famously use desks anywhere they can find them. and very soon, a lot of those desks could be here — in the biggest start—up incubator i have ever seen. goodness me! and that's because, when it opens injune, this 90—year—old paris train station will become the world's biggest start—up incubator.

director roxanne varza has let us in early. what i like is these kind of "future pods" up here. what are these? yes, these are all meeting rooms. we have them throughout the building, and they're meant to be like shipping containers transformed into meeting rooms. so, massive glass walls on one side — tell me there will be marker pens inside... and they'll be writing... and they can put post—its all over it. you got to write on the glass. if you're a start—up, you've got to write on the glass. station f is full of big numbers. privately funded by an investor and telecomms entrepreneur, it cost 250 million euros. it has 3a,000 square metres of floor space. it's as long as the eiffel tower is tall. it will seat 3000 entrepreneurs — and that's just in the middle section! we haven't even got to that bit yet. so this part is the start—up zone.

oh my goodness, that's just insane. and i'll tell you what, filling it with building dust like this makes it look awesome. and below us, we actually have showers, and lockers — if an entrepreneur wants to stay here all night, he can. what you mean if somebody wants to stay all night? that's the point of being an entrepreneur, you don't sleep for three years! it may seem like overkill — it certainly does to me — but roxanne is confident that france can not only compete for start—up interest with the likes of the us and the uk, but in these uncertain times, it actually has an advantage. we've actually seen the impact of brexit, we've seen the impact of donald trump in the us, we've also seen — i mean, silicon valley have been skyrocketing for the past few years. so we are seeing these elements start to play into where start—ups choose to build their companies. a lot of companies which would have previously looked at the uk are now looking at france, looking at other places in mainland europe, and in our applications procedure,

we've had start—ups that have specifically referenced these as criteria when they were coming to france. france is currently second, behind the uk, in terms of both money raised in big data, ai, and other so—called deep tech in the last five years, and also in the size of its pro developer workforce. so it might not need a massive leap to become number one. everybody gets a locker? everybody gets a locker, of course. i like this under lighting, that'sjust... yeah, the lighting is... very good. do you think in france, there are more regulations, more red tape, more official stuff that you have to cut through? i do think that, administratively, it is a place where there is potentially more complexity than elsewhere. i mean, it depends on what ecosystem we're comparing it to. the main problem i see in france is that things change. as soon as new administration comes

in every three years, we're changing things that we have put into place. and start—ups cannot keep up. they can't every few years have a completely different tax credit or scheme, so they need something that is stable and that they can count on. not that red tape is always a problem here. 0ne start—up, in a northern suburb of paris, has already been given permission to place three of its pods around the city. so, what on earth is agricool putting inside these shipping containers that makes them so desirable? it is a strawberry farm! you probably know that fruit sold in city supermarkets has usually been on a long journey, over several days, to get there. and that means it has to be picked before it's ripe, and isn't as sweet or nutritious as it would be if it was left on the plant.

well, this is a way of keeping fruit on the plant, in cities, until the very last minute. there you go, four walls of strawberries bathing under led lights. here's all the water that you need, which is pumped in, and then when it's finished, it's pumped back out again. it's a closed loop system. here are your nutrients, and over here, a box of bumblebees. did you know you could order bumblebees by the box? i didn't. that's where they live, that's where they travel in and out, and that's where the pollination happens. agricool is currently experimenting with different colours of light and different mixes of nutrients in order to get the very best strawberries. well, inside each shipping container, we create a real paradise for fruits and vegetables. so best air, the c02 level, the best lights, with led lights. we can grow the equivalent of 4000 square metres in only

70 square metres. so it is like 120,000 times more productive, using 90% less water, using no pesticides, actually, and using only renewable energy. the two founders, both sons of farmers, have also noticed how tomatoes and strawberries that have been transported over long distances are tougher, in order to survive the journey. logistics is more important now than actually just growing the fruit. so you know, they try to find the best pieces, that can last longer, they try to have larger skins. when the fruit, you know, decides to give more to the skin, then it decides to give less to the, you know, the fruit inside, and nutrients, and taste. just to be clear, these shipping containers won't move, they'll be permanent fixtures in cities. and with a minutely controlled climate, a new batch of strawberries can be grown every 11 weeks, meaning city folk can experience the taste of country

living all year round. you know, i do want to overstate this, but if you think about the amount of agricultural land that is being swallowed up across the planet, everyday, this could be the future of farming. anyway, that's it from us from paris for the moment. certainly seems there's a lot going on here, doesn't it? we'll have to come back soon. anyway, in the meantime, check us out on twitter through the week, @bbcclick. thanks for watching, and everyone back to mine for strawberries. and the next few days will bring us a bit of a shock to the system. some colder weather on the way. with some frost and some wintry showers. some of us got off to a frosty start this morning as well.

but first some sunny spells, things are going to warm up fairly nicely for the rest of today. particularly across england and wales, we're underneath the influence of this area of high pressure, but a weather front approaching from the north, clouding things over for scotland and northern ireland. behind these weather fronts, some cold air is lurking. and that is on its way towards us. more cloud through scotland and northern ireland through this afternoon. some splashes of rain, some heavier rain and strong winds as well. across the far north of scotland. across the bulk of england and wales, some spells of sunshine, some patchy cloud. where we see any lumps of thicker cloud, well, don't be surprised if there is just the odd light shower. the vast majority will stay dry. high pollen levels. the best of the sunshine lifting temperatures up to around 15 or 16 degrees. for northern ireland and scotland, more in the way of cloud, some splashes of rain. across the west and the northern isles, some heavy rain setting in this afternoon. with some pretty strong winds. gales potentially for a time. as the area of low pressure winds its way.

and then this cold front takes our attention because as it moves south through tonight, it will take some rain and introduce this colder air across the northern half of scotland. some wintry showers, a touch of frost. more cloud further south across england and wales. not such a chilly night. tomorrow our weather front, our cold front continues its journey southwards with patchy rain. behind it, the skies will brighten to northern ireland, northern england and scotland. there will also be some wintry showers. a mixture of rain, sleet, hailstones and snow over high ground. even relatively modest hills could see some snow. maybe some more persistent wintry weather for a time. easter scotland, north—eastern england. three degrees the afternoon temperature in aberdeen. even in the south where you escape the chill on monday, tuesday brings that cold air all the way across the country. this cold northerly wind coming away from the arctic. wintry showers that times and temperatures in single digits for many. a cold and frosty start

to the morning as well. a cold night on tuesday night. wednesday and thursday remaining chilly with wintry showers. a bit milderfor the end of the week. this is bbc news. the headlines at 1pm: jeremy corbyn refuses to confirm that labour would renew britain's trident nuclear deterrent, if it wins june's general election. voting is underway in the first round of the french presidential election — candidate francois fillon has cast his vote. a man has been killed by thieves who stole his carfrom outside his house in manchester. royal support for london marathon runners — with wins for david weir and kenya's mary keitany and daniel wanjiru. this is where the thousands of

amateur runners are now crossing the finish line. so