but a police manhunt continues for the driver of the van which killed 13 people in barcelona. spain's king and queen are to attend a special mass on sunday in honour of the victims. tens of thousands of people in the us city of boston have demonstrated against a rally by the far—right. the small turnout of supporters for the right—wing "free—speech rally" had to be escorted away. police made a number of arrests after scuffles with what they called anti—police agitators. the iraqi prime minister has announced the start of the ground operation to drive the islamic state group out of its last major urban stronghold in the country, tal afar. waves of air strikes have been conducted against the city in recent weeks and it's been surrounded the iraqi army and militias. now on bbc news it's time to click. this week and next, a repeat of click‘s stellar trip to india, with bangla bangers...

smoggy sunsets... and angry angle grinders. get ready, your indian experience starts now. as soon as you step off the plane, india hits you like a big, hot wall of noise. it is everything you've ever imagined it to be. it is life turned up to ii. the first thing you'll notice will be the traffic. it's always the traffic.

is the tip just to kind of step out? oh, this looks like a gap. the sound is deafening! everyone‘s honking. for 70 years this country has been independent of british rule and the cities that have sprung up around the old colonial grandeur seem chaotic, but they do kinda work... ..kinda. and india has found a niche in the wider world. half of its 1.2 billion people are aged 35 or under. maybe that's why it's known for its it know—how, its outsourcing. and the bosses of some of the biggest tech companies in the world are indian. but it hasn't had as much luck in taking over the world of consumer technology. after all, how many indian tech brands can you name? the truth is that although there is a middle class of consumers here willing to buy brands, it's not actually that big

or that rich. we're here to find out how india is preparing for its future and, let me tell you, it is reaching for the stars. in 2013, india became the fourth spacefaring nation to launch a probe into orbit around mars and, unlike those who came before them, they did it on their first attempt. the indian space research organisation, isro, has been gaining a reputation for doing tons of successful space stuff on a shoestring budget. their mars mission came in atjust $74 million, that's less than it cost to make the film gravity. and, in february this year, they made history again by launching

a record 104 satellites on a single rocket. it could just be that india has created the perfect combination of big brains with big space experience, but a mentality for doing things on the cheap. just the sort of place you might go if you wanted to, say, land a robot on the moon for the space equivalent of small change. how confident are you that this will work? laughs. welcome to the earthbound hq of team indus, one of a handful of start—ups competing for the google lunar xprize, that's $20 million for the first commercial company to land a rover on the moon. december, 2017, blast off. the team indus space craft goes into two days of earth orbit and then, boom, 11.5 days to the moon. 12 days of spiralling down to the surface and then if all goes well, out comes the rover,

travels half a kilometre, sends back hd video and wins the prize. what could possibly go wrong? rahul narayan is the co—founder of team indus and has been here since the very start of the project, way back in 2010. at that point you had no idea how you would acheive it? yes, i googled it and figured out what wikipedia had to say about landing on the moon. you did an internet search on how to land on the moon? absolutely. laughs. did it have any useful information? yes. it said there had been 85 attempts and i think every second attempt failed to the moon. six years later, there are around 100 people working very hard here, and it certainly looks like they know their space stuff. star wars in particular. even the toilets are

appropriately labelled. and they've built themselves all the things that a serious space company should have, like a mission control room, a model lander that makes smoke, and a simulated lunar surface complete with a rover to go in it. so what do you use to simulate moon dust? you could go to an expensive lab and try to buy lunar simulant, we just went to a stone quarry and asked them to give us the milling output. that's what this is — about 150 microns. it has electrostatic properties, which we're not able to replicate. it's supposed to be very, very electrostatic. so that means it's going to stick to the rover? that's correct. that's one part of the analysis. it's going to get into all thejoints? it will get into every perforation, the lens of the camera, everywhere. just like national space agencies, testing every component and simulating every stage of the mission is a huge part of what they're doing here. we're making sure we do everything right. we're just not making it fancy. we are going to make it frugal,

specific to the mission, but there's absolutely no corners that we're cutting. and, to look at it from a more philosophical way, we have one shot to win this. we don't have a flight spare, so if one blows up we can go and fly the other, we have to get this right. team indus is one of five start—ups from around the world who have secured launch contracts for their rovers. while they can't say for sure, they think they'll launch before any other team, and so perhaps be the first team to land and win! that's except for the fact that to save costs they have had to sell some of their spare launch weight to a competitor rover. japan's team hakuto will be onboard too. you're both going to get to the moon at the same time. yes. how is that going to work? it's whoever touches down first and whoever has the fastest rover? it's going to be crazy! in a manner of speaking, yes. so what do you expect to happen?

so it's a race, it's going to be a very interesting race, and once we touch down and both the rovers are deployed, let's see which one makes 500m first. i would so put a laser gun on yours. i would so... imitates laser. all of that assumes of course that the rovers make it to the moon in the first place. space exploration is a risky business and when it goes wrong, it tends to go really wrong. six years, hundreds of thousands of hours of effort and millions spent, and there's certainly a lot riding on getting things right. you mitigate the big pieces and then you start mitigating the smaller risks and at the end of the day, absolutely, one small wrong piece of code that somehow made it through could kill the entire mission. there is a word here in india that i think describes team indus‘s low—cost, make do approach. "jugaad".

i've come to the centre of mumbai, to dharavi — asia's second largest slum. here, in its tiny alleyways, "jugaad" is all around, as a desperately poor population reuses as much as is physically possible. built by workers who flocked to the city over hundreds of years, some of the houses here date back to the 1840s. it is an intense experience in the middle of an intense city. you really do get a sense of the scale of the place from up here, and it's a weird scale as well, because it's actually quite small. it's only two square kilometres, but around 1 million people live here. it's phenomenally densely packed, and it's notjust people living here and doing nothing, either,

this place has a working infrastructure and a working economy. this place really does work. 10,000 dharavi businesses generate 30 billion rupees for mumbai every year. they make things and they recycle things. like all those plastic bottles drying on the roof, which are shredded into reusable plastic pellets. the whole production line is itself a work of "jugaad". this is where they make the machines that recycle the plastic, so i guess this is a factory. brace yourself. 0nce finished, these machines will chew up the plastic, which is then washed, sorted and dried. the work is heavy and hard, and for a wage that affords

the meagrest of existences. it's incredible to think that 55% of mumbai's population lives in slums like this one. up ahead, there is a pile of shredded denim which they use for fuel. they burn it to fuel the kilns, just like they burn a lot of stuff forfuel here. and there is smoke everywhere here. you can really tell the air quality is very poor. you just have to take a few lungfuls and it starts to burn the back of your throat, it makes your eyes sting. the smoke is a necessary evil for the people of dharavi. like most of the developing world, pollution has been the price india is paying for a booming economy. the smog that gives mumbai its spectacular sunsets has also made it the fifth most polluted

mega city in the world. and when the sun disappears before it hits the horizon, you can well believe it. in november, 2016, the indian government declared the air pollution in delhi a national emergency, with harmful pollutants more than 16 times the safe limit. and it's notjust caused by all that traffic. so, where does it come from? i was surprised to find out a lot of it comes from diesel generators. see, the electricity in india isn't very reliable, but there are plenty of businesses that need guaranteed power, so they have their own individual generators that fire up whenever the electricity goes down and that means there are loads of exhaust pipes like this all over the city, which regularly belch out all kinds of unpleasant stuff. when you start looking for them, they're everywhere. even the mobile masts

have backup generators. hello. here in bangalore, we've come across a small project to capture the soot and turn it into art. so what we have built is a retrofit device that attaches to the exhaust pipe of the chimneys. this device can be attached to practically any exhaust pipe, irrespective of what is the age or type of engine you are running, and it captures practically whatever particle matter comes out of it. once you capture particle matter that is substantially carbon, which is like the basis of everything that exists in the world, at present we recycle it into inks, which we believe is something used by practically everyone on the planet. the headquarters of graviky labs

is a mix of art studio and mad laboratory — the perfect combination, if you ask me! their so—called "air ink" does have a few restrictions. it will only ever come in black, and at the moment it's not good enough quality to be used in printers. graviky is giving it to artists, who are finding their own uses for it. painting and screenprinting, for example, for use on clothes and bags. and while the ink may only have limited uses at present, nikhil insists it is still better to put the carbon to good use rather than just collect it and dump it. once we read the scale of,

you know, for example, city—wide insulation, we plan to install what we call carbon banks in multiple locations, to be either trapped by the people or by our own staff. even in the shorter term, the thought is to place these carbon banks in business headquarters and lorry depots, where large numbers of vehicles are centralised anyway. and while the ink may only have limited uses at present, nikhil insists it is still better to put the carbon to good use rather than just collect it and dump it. there are many technologies that have captured pollution in one way or the other, but if you don't recycle it you are actually leaving it for the future generations. love is in the air in india. it's reckoned there are 10 million weddings here every year. and, as in many aspects of indian life, religion often directs the dating game.

the country's online matchmakers have traditionally put faith at the forefront as well. but now there's a new crop of dating tech and it's, well, that's agnostic. tinder has reported rapid growth here. it matches people based on proximity and doesn't ask about belief. it's not the only dating service where faith is slipping down the priority list either. a ‘single mingle‘ in one of delhi's most romantic spots. these love—seekers have been hand—picked based on a range of factors. they're open—minded about religion, but it's still clearly a biggie. i do not see religion as a barrier. when i talk about any kind of connection, be it friendship, be it professional connection, be it even marriage for that matter but i'm not sure that's what everyone in india would agree to. even though we don't necessarily mind liking someone from another religion, but we don't want to hassle ourselves

and hassle our parents because it's going to be a big thing. some dating entrepreneurs believe tech ultimately challenges religion. we know so much about people that we're actually able to serve you profiles of people we believe will be compatible with you and that does not include necessarily religion or cast, but it actually includes a much more foundational human level. i think that's the beauty of technology. some areas of india have reported big rises in inter—faith marriages. so how has the country's religious communities responding? catholics make up a tiny minority here and church leaders are worried, particularly about young women who convert to their husbands religion and abandon catholicism. but the church has developed a secret weapon, their own dating website. the unique selling point? well, honesty. there'll be no massaging your dating profile here because you'll have to go to church to register

and get your picture taken. the verification in terms of the education qualifications is got, so we put that all together and once that's in place, the website will probably go live and you would have opportunities for young people to find an alliance online. but what about the majority religious group? one of hinduism's most high—profile branches says they have no problem with inter—faith dating — it's the technology they‘ re concerned about. they have some blunt advice for love hungry teens, and it might not prove popular. try to avoid mobiles. everyone has to remember, you know, how he wants to lead his life. are you going to talk romantically to half a dozen people and then try to fish out which is better? that is not good, you know? whatever time available for you,

for your conversation and entertainment and understanding, and education, you have to make the list of priorities. whatever the religion, it's clear technology is causing some seismic changes. and in a country obsessed with matchmaking and tech, even the young are struggling to keep up. a series of plays staged in mumbai tackle the thorny subjects of modern dating, and one of the writers reckons religious influence is here to stay, and for some pretty basic reasons. most of these guys in the city would live with their parents. if i want to get somebody home to live with my mother and father, her tastes and ideas should match to that of my mother and father. they might not be the same. they may have their differences. but there has to be a line. so if she cooks meat every day, my parents wouldn't like her at all because they don't eat meat, they would just keep fighting over

who is in the kitchen the whole time and that becomes a headache for me. religion, technology and romance. three forces that aren't going away any time soon. question is, can they alljust learn to get along? living in the developing world means living with the possibility of developing particular health problems. but there are many diseases that can affect everyone, rich and poor. this is your hospital? yes, i'm the head of this breast cancer awareness. this is our outpatient department. this is the ecg cardiography room. this is our x—ray department. breast cancer is now the most fatal cancer among women worldwide,

and it's the same here. the problem in india is it's often not spotted early enough with more than 60% of the women diagnosed here at stages three or four. i've come to the cama and albless women's and children's hospital in mumbai to find out why, and also to see something new. a low—cost device that could aid early breast cancer detection. mammogram devices are, of course expensive, most of the women don't go for mammography, because they think it's very painful. in other countries they are going in the early stages and they are getting diagnosed and their survival rate is 80%. but most of the asian countries, if you look in china and so on, they are coming in in advanced stages and in advanced stages there is less ways to treat them, either chemotherapy

01’ to treat them, either chemotherapy or radio therapy. and in this case, the survival rate will be less. mammogram devices are, of course expensive, and taking one, plus a skilled operator to remote areas, is impractical. doctor katkiss hospital is one of those using ibreastexam, which works in a very different way. instead of using x—rays like mammograms do, it has 16 sensors that vibrate and collect pressure data as it's moved around the breast. any tumours, which are stiffer than normal tissue, will register on the accompanying app and any areas of concern can then be referred for further examination. it's this portability that grab the attention of the minister for medical education, who's helped to fund the breast exam programme. translation: on the government level we have installed these machines in all the medical colleges for women to come and get checked for breast cancer from various parts of the state.

we also plan to send this machine to other places like civil hospitals and medical colleges. with this machine we have been carrying out screenings in villages, townships and cities and plan to cover the whole of the state of maharashtra. the ones who are affected are to be brought to mumbai and pune, thus saving many lives. this is the device. what surprised me is how gentle it feels. so these are tiny vibrations it's giving out. that gentle vibration is all that's needed to detect lesions as small as three millimetres, and that's far better than the three centimetre lesions present in late— stage breast cancer. and achieving that level of accuracy has been the real innovation here. it's a tiny sensor that when given a little bit of power can create these micro—palpations on the breast

and inherently that's why it's different to mammograms, which uses x—rays. but is this better than mammography? i think we have a long way to prove that it is better than mammography. we're not there yet. it is already creating access where mammography is not able to reach, so in that sense there is no competition between the two modalities. ibreastexam helps provide pre—screening and identifies women at risk, and mammography can provide a diagnostic affirmative answer as to whether the woman needs to be moved upwards or not. our goal is really to provide this as a standard of care solution to all the developing countries struggling in the same way. that's it for click in india for the moment at least. we've had an absolutely fascinating time here and you can see plenty more photos we've taken around and about the place on twitter at: thanks for watching and we'll see you soon.

hello again. saturday was another day of sunshine and showers, with showers particularly frequent across more northern parts of the uk. in scotland, many of them were heavy and thundery. this is one of the clouds working across the skyline of argyll and bute, a big cumulonimbus cloud working into the scottish highlands. some beautiful pictures there out and aout yesterday. a few showers left over across north—western scotland, for most, a dry start to day. these kind of temperatures first thing in the morning. 0ur weather today is going to be influenced by this. hurricane gert a few days ago was satjust to the east of the united states, but since then it has been moving

north, and it has been ripped apart by the strong winds of the jet stream. but the moist remains of gert are now racing across the atlantic tied in with this normal area of low pressure. sunday starts off for most of us as a much better day. dryer weather, a few showers around. more in the way of morning sunshine. in the afternoon, things clouding over a little bit. still some bright weather for most of the uk. towards the south—west, it's a different story. through the afternoon, gradually seeing the cloud thickening up to bring outbreaks of rain. initially quite light and drizzly, similar in wales. later in the evening, the rain getting a bit heavier. for the midlands, eastern and northern areas of england, dry with some sunshine. probably clouding over across northern ireland as the afternoon progresses. in scotland, far fewer showers. dry weather and light winds, should feel pleasant when that sunshine comes out. sunday night seas the rain turn increasingly heavy. notjust across england and wales but also in northern ireland, later in the night we will see heavier rain arrive.

along with this band of rain, turning quite murky with mist and hill fog patches developing too. rain tied in with this weather front. early in the week it will push north, taking some heavy bursts of rain with it, but allowing some warmer air into the south of the uk. the warmer air is behind this front. a cloudy start with some damp conditions and hill fog, it may stay wet in northern ireland for a chunk of the day. heavy rain crossing into northern england, central and southern scotland too, but probably not reaching the far north of scotland. increasingly humid in the south. not much in the way of sunshine but temperatures still in the low 20s. although tuesday starts cloudy, if we do see some decent sunshine breaking through the cloud in the south of england, temperatures could reach around 27 celsius. so after weeks of looking for it, i've finally found some warm august weather. this is bbc news. i'm gavin grey. our top stories:

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