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, as a new blaze in the south of the state threatens the ronald reagan presidential library. 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 22 november, so it will 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. joining me now is daniel kreiss, associate professor at the hussman school ofjournalism and media in north carolina. thank you very much for being with us. thank you very much for being with us. so first of all, do you think this is a good idea or a bad idea?” this is a good idea or a bad idea?|j think this is a good idea or a bad idea?” think it is an extreme move by twitter. ultimately i think there's going to be a lot of unintended consequences, and i think that they

went the exact opposite of facebook, where facebook said they will allow everything and twitter said we will allow nothing. and there is a middle ground here. but let's be clear, this isn't a huge part of twitter‘s business, is it? so it is not a huge sacrifice. it is not, and it is not really a business concern. it seems driven more by their public profile as being a company that is seeking to improve democratic conversation. what do you think about this as far as facebook goes? this could be taken as a bit of a dig on facebook? approach. i mean, it could be. i think the tragedy here is that on one side twitter is saying that no political ads, even by entirely legitimate political actors, will be permitted, and facebook takes the other extreme and says we're going to allow everything. and nobody i

think addressing the real issues with targeted digital political advertising. so what are some of those issues? is itjust the fact that people can say one thing to one audience and may be something contradictory to a different audience, or is it that things can just be fake and made up? that's exactly right. so the primary issue here is one with the data and targeting mechanism of politics, that allows politicians to very finely crafted a message to a very narrow slice of the electorate. i think if facebook and twitter were to add more friction into their systems, to make it harder to only say things on a personalised basis toa say things on a personalised basis to a very small group of people, then candidates would be forced to craft broader messages that reach more of the electorate, and by consequence they would be less extreme. ic, and i want to be clear just for people watching, if they

arejust kind of tuning and now, we're not saying, twitter isn't saying, that politicians use twitter. it is not saying that people can't go in and use the site to publish their political point of view. so twitter will still be full of political messages, some of which will be true and some of which will be false. exactly, so this only applies to paid political content. and i think this really matters because a lot of the candidates who engage in paid political content might be those who don't get a lot of free media, might be those who are challenges to important incumbents, so they find paid political advertising an important way to get their message out to a public that might be very fragmented and very inattentive. and that is

why this really matters. so it only affects those paid advertising policies on twitter. a fascinating issue with these elections coming up in the uk and the us. daniel, thank you very much for your thoughts. 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 phases of the us special forces operation, culminating in the destruction of baghdadi's compound. here is our north america editorjon sopel. these pictures show the kind of denouement of this operation. and we can run the first pictures that we get. this is in north—west syria, in idlib province. and you can see the us special forces, 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 are attacked from the air by helicopter gunship. the second sequence of pictures is after the 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. firefighters are continuing to battle raging wildfires in california, as powerful winds threaten to make the situation worse. a new blaze in southern california is burning dangerously close

to the ronald reagan presidential library. thousands have been evacuated as the wildfires 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 injust 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.

let's get some of the day's other news: an inquiry into the fire at the grenfell tower apartment block in london two years ago has issued a damning report. 72 people died in the fire injune 2017. the report concluded more lives could have been saved if the building had been evacuated sooner, and found systemic failures in the london fire brigade response. the us federal reserve has cut interest rates for a third time this year. policy makers are trying to keep the economy on track in the face of ongoing trade wars and possible headwinds from brexit. fed chairjerome powell suggested he does not expect the bank to change rates again unless economic conditions worsen unexpectedly. british prime minister borisjohnson and the labour 0pposition leader, jeremy corbyn, have traded blows in parliament, a sign they are getting ready for the general election. while brexit is still a key issue, mr corbyn also said voters had a once—in—a—generation chance to save the national health service. borisjohnson warned of economic catastrophe if labour

gets into power. voters are expected to decide on 12 december. there have been violent clashes at anti—government demonstrations in iraq, leaving several people dead. it is being seen as an escalation in a series of protests against the country's current political system. rich preston has this report. a strict curfew did not deter these crowds. baghdad's tahrir square, also known as liberation square, where thousands gathered for a sixth day, unhappy with the economy, corruption and the political system. in the middle, a memorial to the more than 200 reported killed in demonstration since the start of the month. thousands more wounded. these

latest clashes near the green zone, home to foreign embassies and government buildings, governments many here point the finger at. translation: iraqis refuse the political blocks in the green zone. they have failed for 17 years to build a national project that serves the iraqi people, but they succeeded in stealing the money of the poor and the iraqi people. on the sidelines, volunteer medics come to treat the injured. translation: we are coming every day, all day, to tahfir are coming every day, all day, to tahrir square to treat the injured protesters. translation: we have formed medical groups in this camp. we gathered in this tent to treat the protesters affected by teargas. there are lots of people coming together to donate different types of medicine. they are coming to us daily, asking about their needs for medicine. these protesters don't just want those in charge to resign. they want the entire political

structure reformed. it is unlikely the protesters will get their way, but for now, they say they are watching, waiting, and not going anywhere. stay with us on bbc news. still to come: as the wildfires continue to rage in california, we will speak to someone who was forced to flee their home. 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 speak to los angeles resident troy pade, who was forced

to evacuate his family from the fire exclusion zone near mandeville canyon and is now taking refuge in malibu by the coast. thanks very much for speaking to us. firstly, i'm pleased you're out and you are safe, of course, but you left your house in the middle of the night. it must have been pretty scary? probably the most frightening experience of my life. i was awoken to the sound of helicopters running very low, startled out of bed and i immediately looked on social media to see if anything was going on and a resident, neighbour, posted they smelt smoke coming through the bedroom window so i immediately looked out the living room window and saw smoke on the horizon. i drove down the road to how close it was and i was barely ten houses down the street when i saw the glowing smoke coming over the ridge, and i immediately turned around and started alerting my neighbours and

my husband that fire was imminent. we actually had a head start on our evacuation because of the noise. so we we re evacuation because of the noise. so we were about 15 minutes before the texts started coming through from the city letting us know there was imminent danger. wow! so you got out and escaped, so now it's a waiting game? you don't know what your house is going to be like and if and when you go back? yeah, the aerial shots that we have been able to ascertain off—line. .. that we have been able to ascertain off—line... 0r online, we noticed oui’ canyon was off—line... 0r online, we noticed our canyon was spared. unfortunately the canyon adjacent to ours, kempner, did come through. you've heard about tiger tale road, that sits atop one of the adjacent ca nyo ns. we sits atop one of the adjacent canyons. we were about two miles from where the fire was put out, but still too close. absolutely. the

extraordinary thing is you are now staying with friends, and i believe you had to put them up for a previous wildfire? somewhat correct. yes, our friends lived previous wildfire? somewhat correct. yes, ourfriends lived in previous wildfire? somewhat correct. yes, our friends lived in malibu and they fled during the previous malibu fire last december, and we offered them our home but they ended up seeking refuge in a hotel. ironically they are in europe right 110w ironically they are in europe right now on vacation and they heard about the fire prior to us hearing about it and actually said, "we are out of town, if you need our house then please take it". we are very grateful for them letting us stay in their beautiful home here.” grateful for them letting us stay in their beautiful home here. i bet! is it slightly disconcerting and worrying that this feels like the new normal now? yes, i think living in california, you get used to natural disasters. i think earthquakes seem a little easier to handle because they are over so

quickly. this wait and see for over three days as to whether or not the fire will reach our home and what oui’ fire will reach our home and what our neighbours' homes will be like was probably the most disconcerting, and to compound it with this massive windstorm blowing through has put us on edge as to whether or not it will reignite the embers already thought to be put out and if it could reignite is probably the hardest pa rt reignite is probably the hardest part of it. lots of unknowns ahead, but we are pleased you are out and safe. troy pade, thank you very much force speaking to us. my speaking to us. my pleasure. a second earthquake has struck the southern philippines on the island of mindanao. the 6.5 magnitude quake hit in the same area as the stong tremor that killed at least seven people on tuesday. the us geological survey says there is no threat of a tsunami. officials in the philippines however have warned there are many injured from tuesday's quake, and that the death toll may climb. 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, paris correspondent lucy williamson has been speaking to their families and to others who've 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? thi hiep spoke to us from vietnam. —— she spoke to us. translation: they are 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 don't have that kind of money. they paid with their life instead. lucy williamson, bbc news, paris. chile has pulled out of hosting two major international summits

as the country continues to be rocked by anti—government protests. the summits are the un climate change conference and the apec trade forum. it's the first time a country has pulled out of hosting the climate conference at such short notice. the bbc‘s katy watson has more on this. this is a massive decision by chile, but one perhaps understandable with the fact the protests are ongoing. it would be hard to see world leaders coming to santiago whilst people are on the streets every day in chile. now, this was meant to be chile's moment. apec, the asia—pacific summit, was going to see trump, with the chinese leader, sign phase one of a big trade deal, and december the un climate conference, which is a massive date in the calendar. but the fact is pinera has to focus on problems at home. he called this a painful decision but one that made commonsense. he likened the decision—making to that of a parent — that if there were problems in the family, the family came first.

likewise for a president, his people are more important than anyone else. emotive words, but lots of chileans might struggle to understand them because since these protests began, sebastian pinera has struggled to find a resolution and put a stop to these protests. he came across quite aggressively when they started, talking about the fact this was a war with enemies, and that obviously didn't go down well with the public. he made concessions, including a rise in wages, a rise in the tax on the rich, but people felt those changes were cosmetic. he's also changed cabinet members, but people feel that that is not enough. now, speaking to people on the streets of santiago last week, there were a lot of people who felt that actually there needed to be a lot bigger structural change, a change in the constitution, a more inclusive society, because chile — yes, it's one of the wealthiest countries in the region but also one of the most unequal countries in the world, and people want much

more of a voice and a much more inclusive chile going forward. 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 in jerusalem, space can 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 any more, 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

50 metres underground. above an existing cemetery but one that had become increasingly full. this is seen become increasingly full. this is seen as a 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 tha n that you see now was built in a bit less than three years. there was a mountain here before. your standing inside a rock. we think this as an environmental solution but it also incorporates tradition, so therefore helps... the first 8000 graves are expected to be available for burial in the coming months. the rest of the site will be occupied in the next two yea rs. as graveyards 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. that's it from me. i'll be back with the headlines in a couple of minutes. meanwhile, get me on

twitter. i'm lewis vaughanjones. this is bbc news. bye—bye. 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 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. 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 hanging back, though, in southern england and 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, and 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, as well as 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, and 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 also going to bring much milder air from 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 and perhaps more persistent rain running into the south late in the day. 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 south of the low running to the south of the uk on saturday, it could be a very windy day, especially 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 has 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.