welcome to bbc news. i'm lewis vaughan jones. our top stories: social networking giant twitter announces a global ban on all political advertising, beginning next month. the us military publishes the first images of the raid in which the leader of the islamic state group was killed. raging wildfires in california, but the ronald reagan presidential library is now said to be out of danger. and unveiling the graveyard of the future. the underground resting place for the dead ofjerusalem.

twitter has announced a global ban on all political advertising on its site. the social media company says it wants to prevent potential problems with unchecked information and fake news. the policy comes in on the 22nd of november, so it'll affect the uk general election and next year's us election. our media editor, amol rajan, has this assessment of how the fight for voters‘ attention is increasingly being waged online. recognise any of these? in the coming weeks, brace yourself for a further onslaught of adverts in your social media feed. elections used to be all about the ground war and air war, leaflets through the letterbox or party political broadcasts. today there is a third front, the cyber war, and this digital blitzkrieg is the most complex and controversial of the lot. data from the electoral commission shows the proportion of campaign money going to digital advertising is growing fast. the issue isn't just political parties. it's anyone with a political message to sell. there's potential for a lot more

money to be being spent here. we don't know necessarily who is spending this, what the content of this advertising is, and that's a really big problem for us in terms of working out if there needs to be regulation here. it is in response to these concerns that the boss of twitter announced there would be no more political advertising on twitter globally. but, despite what might seem like a significant shift, political ads on twitter have a fraction of the impact of those on facebook. in the 2017 election, uk political parties spent £3.2 million on facebook ads and just £56,500 on twitter ads. in any case, the vast majority of what cuts through on twitter is shared content, rather than paid—for ads. free speech is a pillar of our democracy, but it only works if you and i know who is doing the talking. alas — when it comes to social media platforms, sometimes we don't. for instance, we often don't know who is ultimately paying for this marketing. it could be foreign or malign actors, who deploy social media

precisely because regulation is so weak. and of course, amid all the clamour and propaganda online, it's those who engage our emotions rather than appeal to reason who find their messages cut through. digital campaigns have no beginning or end. they are constant, it's just the volume is turned up or down according to political need. in the coming weeks, the noise will be deafening. amol rajan, bbc news. the us military has published the first images of the raid in which the islamic state leader abu bakr al—baghdadi was killed. the footage depicts several fazes of the us special forces operation, culminating in the destruction of baghdadi's compound. here's our north america editor, jon sopel. these pictures show the kind of denouement of this operation. and we can run the first lot of pictures that we get. this is in north—west syria, in idlib province, and you can see

the us specialforces, delta force, moving into position to launch their attack on the base that is housing abu bakr al—baghdadi. the second sequence of pictures we're not going to show. that apparently shows isis fighters engaging us forces, and they're attacked from the air by helicopter gunship. the final sequence of pictures is after us special forces have gotten out of the compound, and you see from the air missiles coming down and totally flattening where al—baghdadi had been hiding out. donald trump has been at the white house. he has said that "america congratulates you on that operation, and the whole world congratulates you on the success of the operation". jon sopel in washington. firefighters are continuing to battle raging wildfires in california, as powerful winds threaten to make the situation worse. a new blaze in southern california threatened to engulf the ronald reagan presidential library but officials now say

the building was out of danger. meanwhile thousands of residents have been evacuated, as the wildfires continue to threaten homes and lives. the bbc‘s sophie long has more. another day, another fire. california continues to burn, as the hot, dry weather delivers the fires forecasters feared it would. this time, the strong santa ana winds whipped flames through the simi valley. among the buildings evacuated is the ronald reagan presidential library, home to millions of historical documents, and the resting place of the former president and first lady. they're calling this the easy fire. putting it out is proving anything but. we're on the hill by the presidential library, where there is a massive effort to get this blaze under control. they're fighting it from the air and from the ground, but the wind is blowing very strongly.

and it's the wind that is their greatest enemy. it is ferocious here, with gusts of up to 70mph. it has propelled the fire through more than 1,000 acres in just a few hours. the winds down south are going to be very serious. it's a very serious fire danger situation developing across southern california, and i am concerned for southern californians down there. this is just one of many fires burning across california, where a state of emergency has been in place since sunday. they are dangerous and they are disruptive. hundreds of thousands of homes have been evacuated, and many more are without power. roads are closed, so too are the schools and businesses. and the hot, dry conditions are expected to continue to combine with the strong santa ana winds for another 2a hours at least. sophie long, bbc news, simi valley.

the london fire brigade commissioner, dany cotton, has rejected calls for her to resign from survivors of the grenfell tower fire, but she has expressed her deepest sorrow at not being able to save more lives. 72 people died in the tower block fire in june, 2017. our special correspondent, lucy manning, reports. and a warning, some viewers may find some of the images in her report upsetting. myfamily... here are my family here. why, why? they die, i cannot sleep, always crying. the last thing i was hearing from my aunt was, "where are the firefighters?" and i rest it at that. "where are the firefighters?"

i pray every single day, since the tower, to die sooner, because i have no meaning of my life. and they do not want to become a political football... no enquiry can comfort them. no blame brings them back. n0 warm words ease their harsh reality. grenfell was a national tragedy, but their deeply personal one. el—alami hamdan lost his daughter, her husband and their two children. leena, six months old, died in her mother's arms. why, why? this is our families. i not come in here just to pass the time. i had a family. fourfamily die! the report blames the cladding that surrounded the building for spreading these flames. it broke building regulations. the fire so fierce

because grenfell‘s walls were covered in a material that was flammable. but the focus of this part of the enquiry is what happened on the night. despite the bravery of some firefighters, the fire brigade is heavily criticised for institutional and systemic failures. telling people to "stay put" in these flames cost lives. paulos tekle was told to stay put in the building — his 5—year—old son isaac didn't make it out. 0n the night i was there, i was suffering, still i am suffering with this situation. but there was no excuse. we should have been rescued and helped by the firefighters. nazanin aghlani lost her mother and her aunt. they were responsible to do a job, they had training, they had legislations that told them what to do if compartmentation is breached. they didn't do it. they should be prosecuted,

i'm not saying individual firemen, they did a hard job, bless them, they probably don't even get paid that well. but the seniors at the top, they get good money to do a very seriousjob. the most senior fire officer is criticised for her remarkable insensitivity for her words at the enquiry. i wouldn't change anything we did on the night, ithink... today she apologised to the families. the 72 lives lost were just the worst thing ever, and london fire brigade are truly sorry we could not have saved everyone‘s life that night. but do you accept that more people died that night because you did not evacuate the building on time? i think it would be very difficult for us to make, draw that conclusion and i think even sir martin moore—bick says he has no expert evidence to draw that conclusion. but he does draw that conclusion. so, will you resign and some of the families are asking? no, i won't, i will retire in six months‘ time. because my commitment is to making those changes and if i resign, i can't do that. the report found training for high—rise fires was gravely inadequate, that they failed to cope with the 999 calls and that firefighters

struggled to share information as the communication systems did not work properly. grenfell survivor edward daffarn warned that there would be a serious fire in the building months before it happened. we first met him on the morning of the fire, in the clothes that he fled in. my life, my self, was saved by a brave firefighter, from the 16th floor, who came and rescued me when i was taking my last breaths, and sir martin moore—bick in his report points out that there are many, many instances of brave and courageous act by firefighters. my own personal view of dany cotton is that she needs to be dismissed from her post. 0n the grenfell tragedy... in the commons, they stood silent for a minute, as survivors and bereaved looked on at the politicians they feel let them down. they asked for the truth, we promised them the truth, we owe them the truth. and, today, the whole country, the whole world, is finally hearing the truth about what happened at grenfell tower. the shameful fact is, mr speaker,

that feet have been dragged, the exact same cladding is on similar high—rise blocks, sprinklers have not been fitted, thousands of people will go to bed tonight and tomorrow night not feeling safe in this country. this tower, a devastating testament to the companies which made the cladding, the authorities that allowed it to be put on, and the fire brigade who saved some, but failed others. stay with us on bbc news. still to come: as uk police investigate the deaths of 39 migrants found in a lorry. we have a special report into the vietnam—to—france smuggling routes, and the business of human trafficking. indira gandhi, ruler of the world's largest democracy, died today. 0nly yesterday she'd spoken of dying in the service of her country and said, "i would be proud of it. every drop of my blood would contribute to the growth

of this nation". after 46 years of unhappiness, these two countries have concluded a chapter of history. no more suspicion, no more fear, no more uncertainty of what each day might bring. mission control: booster ignition and lift—off of discovery, with a crew of six astronaut heroes and one american legend. well, enjoying the show is right. this is beautiful. a milestone in human history. born today, this girl in india is the 7 billionth person on the planet.

this is bbc news. the latest headlines: social networking giant twitter announces a global ban on all political advertising, beginning next month. the us military publishes the first images of the raid in which the leader of the islamic state group was killed. more now on the wildfires in california. we can now speak to los angeles resident amy peer, who was evacuated from her home in brentwood and is now staying with friends in santa monica. good to speak to you. thank you very much for taking the time. first of all, we are pleased that you are out and you are safe. but you were leaving at 3am in the morning and rushing out of your house, is that right? whereabouts, yes, yes. and

how was that? different. a little frightening, but we made it down the hill and to our friends frightening, but we made it down the hill and to ourfriend's home, and here we have been residing for the last four days, three days. have you any idea what is happening back up at your house? yes, they actually recently opened from our street west, and from our street east it is still closed, including our street. but the fires are pretty much contained, and they are just waiting for the winds to die down, because a few houses up from us burned down. so they are just being cautious. ic, so so they are just being cautious. ic, so it is watching and waiting now, and obviously you are prevented from going home the moment. i understand it wasn't just you, though, going home the moment. i understand it wasn'tjust you, though, it going home the moment. i understand it wasn't just you, though, it was lots of animals, pets, that you had to ta ke lots of animals, pets, that you had to take and rescue as well. yes, our

dogs, all five of them. so not many people were willing to welcome us, as was our friend there. so here we are with all of them. and fortu nately are with all of them. and fortunately they are all sleeping after a long day. i don't blame them. what do you make of these events, these fires? you are obviously a resident, you are used to them. do you think they are getting worse, better? what is happening? i think the fires are getting worse, but i think the floods are getting worse as well, as are the hurricanes and all these other climate related disasters. i think they are all getting worse. i don't think it's any better in other cities where they have different problems. and just lastly, it must bea problems. and just lastly, it must be a strange feeling, and i have

been speaking to people across california, just this watching and waiting and not knowing, depending on what way the wind blows, not knowing what is going to happen next. it must be deeply unsettling for hundreds of thousands of people where you are. i think it's very frightening, especially this last day, whether winds have been i believe up to 80 mph. so it is pretty scary, as our earthquakes. i mean, we are subject to so many different elements here, but it is the price we pay for being, you know, in california. well, thank you very much for speaking to us, and we are pleased that you are safe. thank you. new details are emerging about the routes taken by 39 migrants who died in a refrigerated truck in the uk last week. several are thought to have come from vietnam and then spent time in france, before making the fatal crossing to britain. to learn more, our paris correspondent lucy williamson has been speaking to their families and to others who have made the same trip.

was france the last place these faces saw? the last place they lived, unrecognised ? some of those feared dead are said to have been here last week before boarding the lorry across the channel. nguyen van hung was last seen leaving marseille for paris, a relative told us. his father got a phone call from the organisers just after the lorry had crossed the channel. they said his son would soon call him. no call never came. nguyen dinh luong had been working in a restaurant in france for over a year. ten days ago, he called his family to say he was going to the uk. his father told us he tried to stop him. last week, doctors took blood samples from the family. someone who successfully made the same crossing from zeebrugge to london last week told us he knew 12 of the people who had died on board the essex lorry.

translation: i left for the uk a day before the lorry transporting the 39 people who died. there were seven people in the lorry, but it was not refrigerated, so breathing was fine. i crossed from russia to germany through woodland, then onto france. i went to the uk to find work, but i'm now in shock, and can't do anything. france is a bottleneck for the smuggler networks. it's seen as a springboard to london, which is why so many migrants end up here. but while it's easy to get to france from belgium, germany, or even poland, it's much harder and more expensive to get from here to the uk. in 2012, a vietnamese smuggler was arrested in france. he reportedly told police that the money went to the parisian boss, whose deputies distributed the salaries to smugglers on the ground. does france's leading expert on vietnamese trafficking think the networks are still being run from here? she spoke to us from vietnam.

translation: they're notjust in paris, they're everywhere. there are bosses in every country in europe, including in the uk. there are a lot of them around paris. they change location all the time, but generally they are around the southern suburbs. sometimes you get a0 people in an apartment. it's inhuman. hiep says more than half of those found dead last week are thought to be from one small area in vietnam. they couldn't pay for the most expensive kind of crossing, she says. they didn't have that kind of money. they paid with their lives instead. lucy williamson, bbc news, paris. south africa has imposed emergency measures and is declaring several regions disaster areas in response to the worst drought in living memory. some areas have gone without substantial rainfall for up to five years. 0ur africa correspondent andrew harding reports from one small town, graaff—reinet, which lies at the heart of the crisis.

in a lonely corner of south africa, a small town is starting to wonder if it has a future. no water. it hasn't rained here, not properly, for five years now. and the local dam is — well, ask the fish. there have been droughts here before, but none this ruthless. the suffering is stark. a gift of hay may save these cattle, but it comes too late for half the herd. i've lost nine cattle, not — only myself. nine dead? nine dead. from starvation? from starvation, from drought. this vast region depends on farming.

not much left here, and this is from the five years of drought. but even the biggest farms are being pushed towards the brink. if this drought persists for another two years, i don't think there are going to be many people left here. in town, a local charity hands out bottled water, but it's hardly a long—term solution. who do you blame? who? who else but the government? you think they should have planned for this? they should have made a plan. they knew this was going to happen. the local authorities say they have tried. they have dug wells, enough to keep some water flowing some of the time, but this has been a wake—up call.

i was very sceptical about it, almost saying it'll never happen to us, but it's happened, it really happened. and what we're seeing now is part of climate change. and people are just going to have to — even countries where they have lots of water, they have got to start realising the situation is changing drastically. the reason why what's happening here today matters to all of us is because this region is currently warming up at about twice the global average — two degrees already, perhaps five or six degrees within a matter of decades. which means that what we're seeing here today is, if you like, a glimpse into the future. and it's not looking promising. the lessons from here are urgent and familiar — plan earlier, adapt faster. andrew harding, bbc news, in south africa. a huge new underground burial site has been officially opened injerusalem. the cemetery took several years to build and was dug

inside a mountain. it will eventually house the remains of more than 20,000 people, as the bbc‘s tim allman reports. injerusalem, space can be an issue, for both the living and the dead. this is said to be the first of its kind, a modern solution to a timeless problem. a giant underground complex providing a final resting place for the people of this city. translation: nowadays, there are no burial caves anymore. making this cemetery is really innovative. we don't want to waste living territory above ground. this is constructed for eternity. this will never change and will remain a burial place. a burial place and an engineering marvel. they excavated tons of rock, creating more than a mile of tunnels 50m underground.

above, an existing cemetery, but one that had become increasingly full. this is seen as a sustainable and ultimately sensitive solution. translation: all that you see now was built in a bit less than three years. there was a mountain here before. you're standing inside a rock. we think this is an environmental solution, but it also incorporates tradition, therefore fits many places in israel. the first 8,000 graves are expected to be available for burial in the coming months. the rest of the site will be occupied in the next two years. as graveyards go, this is something new and something impressive. eternal rest beneath the feet of the city. tim allman, bbc news. a quick reminder of our top story 110w: a quick reminder of our top story now: social networking giant twitter announces a global ban on all political advertising beginning next month. you can reach me on twitter.

i'm @lvaughanjones. hello. south—western reaches of the uk have had relentless rain in the last couple of days. cornwall, the channel islands and devon. this was the scene sent in from one of our weather watchers from paignton yesterday. fairly solid, grey cloud and outbreaks of rain on and off throughout the day. still wet weather around here at the moment, but the low pressure centre responsible is going to be pulling away to the south of the uk as the day pans out. so we'll see things becoming drier, not necessarily brighter, and then we await our next weather system, this time coming from the atlantic, that will bring rain to all areas for friday. for today, though, a lot of dry weather to be had.

the best of the sunshine to the north and east. the rain clearing from the south—west. quite a bit of cloud hanging back, though, across southern wales and the midlands, and the cloud thickening in the west later in the day as that next system approaches. another breezy day, particularly around western coasts. temperatures — well, we could get up to 1a in plymouth with a bit of brightness and some drier weather. we're typically looking at around 9—10 as we cast our eye further north towards scotland. if you are heading out this evening to trick—or—treat, well, central and eastern areas faring pretty well, with a dry story, just one of increasing cloud. further west, patchy rain to start with but turning heavier and more persistent as we get towards midnight. that, of course, is because our next weather system is starting to work its way in. this low pressure centre is going to stay with us notjust on friday but on to the weekend, swirling bands of rain our way. it is, though, also going to bring some much milder airfrom quite a way south in the atlantic our way

on a south—westerly wind, so the temperatures will start to go up even though the rain is coming down. some quite heavy rain at times on friday, tending at first to come in showery bursts, then perhaps some more persistent rain running into the south later on in the day. there will be some brightness in between the showers, and with that sunshine, we could push temperatures up to 16 or 17 degrees across eastern england. we're still talking about nine or ten at this stage in scotland. friday into saturday, here's our low pressure system with us. some question as to exactly how this picture will evolve. if it goes like this, and we get this deep squeeze to the south of the low running to the south of the uk on saturday, it could be a very windy day, particularly for south coastal regions of the uk. either way, it looks like a pretty windy story really for many of us on the weekend, and outbreaks of rain on and off for both saturday and sunday too. the temperatures slide down a little as well.

this is bbc news — the headlines:

social networking site twitter says it's decided to stop carrying all political advertising from next month. in a series of tweets, its founder and chief executive jack dorsey said the reach of a political message should be earned by gaining followers, rather than being bought. the us military has published the first images of the raid in which the leader of the islamic state group was killed. the video shows troops targeting militants on the ground as they flew towards the compound where abu bakr al—baghdadi was hiding — before they moved in. firefighters in the suburbs of los angeles are battling a new wildfire that erupted early on wednesday. the blaze in california's simi valley tripled in size in around two hours and almost engulfed the ronald reagan presidential library. its director said the building was out of danger.