hello, welcome to bbc news. i'm ben bland. donald trump has defied his critics, and many in his own party, by declaring a national emergency to bypass congress, to get the billions of dollars he says he needs to build a border wall with mexico. it means he can redirect funds from other government departments. however democrats say the move is unconstitutional and they'll fight him all the way to the supreme court. our north america editor jon sopel reports. ladies and gentlemen, the president of the united states. donald trump had an unpalatable choice. having not got a deal with congress, he was either going to have to admit failure on funding his wall with mexico, his signature campaign pledge, or he was going to have to go nuclear. he chose nuclear. this was now a national emergency on the southern border. we're going to be signing, today, and registering, national emergency. and — it's a great thing to do,

because we have an invasion of drugs, invasion of gangs, invasion people, and it's unacceptable. watched by relatives who have had family members killed by illegal immigrants, the president rode roughshod over the powers of lawmakers to set budgets and to set up a confrontation with congress that he fully recognises is likely to end up in the courts. we will have a national emergency and we will then be sued and they will sue us in the ninth circuit, even though it shouldn't be there. and we will possibly get a bad ruling and then we will get another bad ruling, and then we ‘ll end up in the supreme court. and all the time the courts are deliberating it means there will be no substantial building work taking place. less building a wall than hitting one. but here's the problem. there's a lot of of fencing and structures — but there are places where itjust ends, so people like his mother and child from guatemala just can walk round it.

"my little girl is hungry," she says, "and i don't have any money." in recent years, the number of illegal immigrants trying to enter the us has been in decline. and most of the drugs that enter the country from mexico come from legal crossing points — like this one. but a lot of border patrol officers who backed the president's call for a wall make this point about the problem subsiding. i would say is's nothing like it was. i would say that it's changed. but that is the equivalent of saying your house is only getting robbed one day out of the week now, instead of all seven, then you're done. we're not done. back in washington, the democrats are considering their next move. it's hard to believe they won't challenge this. president trump couldn't convince mexico, he couldn't convince the american people, he couldn't their elected representatives to pay for his ineffective and expensive wall. make no mistake, congress will defend our constitutional

authorities in every way that we can. donald trump's signature is now on this declaration. there are many on both sides of the divide who question how much of a national emergency this really is. and it won't be lost on them that on day one of the emergency the president flew off to his golf course in florida, not the border with mexico. jon sopel, bbc news, in washington. let's get some of the day's other news: five people haved been killed in a shooting at a warehouse near chicago. police said the gunman was shot dead by their officers. the shooting happened in an industrial area on the outskirts of aurora. at least five police officers are amongst the injured. india says it has incontrovertible evidence to link pakistan with a suicide attack in kashmir that killed more than a0 troops. a senior indian minister said delhi would take diplomatic steps to isolate its neighbour. a pakistan—based group, jaish—e—muhammad, has said it carried out the car bombing of a military convoy

on thursday. it was the worst attack in the disputed kashmir region in three decades. relatives of a teenager from london who went to join the islamic state group have asked the government to help them bring her home. the family of shamima begum, who was is—years—old when she left the uk in 2015, said they understood she would be investigated and they welcomed that. britain's home secretary, sajid javid, has made it clear he'll try to prevent the return of people who've supported terrorist organisations. the body of the football player, emiliano sala, has arrived back in his home country of argentina ahead of his funeral on saturday. the 28—year—old died after the plane he was flying in crashed into the sea between france and britain as he was travelling to his new club, cardiff city. more now on the story of shamima begum, who's family has asked the british government to help them

bring her home from syria. she joined islamic state when she was is—years—old but is now 19 and heavily pregnant and wants to come back to london. the head of britain's intelligence agency, mi6, has warned that thejihadists still pose a threat. daniel sandford has more. inside the al—hol camp in northern syria, the women and children fleeing the fighting in one of the last strongholds of the islamic state group. this is where the former bethnal green schoolgirl shamima begum is. her family had lost all hope of seeing her again. and tonight, in a statement, they asked the british government to help them to return her, along with her unborn baby. "as a british citizen," they said, "shamima has every expectation to be returned to the uk and be dealt with under the british justice system." they said they would welcome the police investigating her,

something that is inevitable if she returns. we have to be clear that people who leave this country to support that regime are people who, if they do return, have to answer for their actions. some 850 people left the uk to join is and around half have already come back. today alex younger, the head of the secret intelligence service, mi6, warned that at least some returnees will pose a risk. the home secretary said this morning that he would prevent those involved in terrorist organisations returning to britain. but what does that mean for shamima begum, who left the uk as a schoolgirl? could she have her citizenship taken away? if she doesn't have another nationality, as i believe to be the case, then it is morally

unacceptable to refuse her entry — as well as legally unacceptable. because otherwise she would be stateless. and no person in the world can be stateless under the law. her family said they were shocked to hear her say she didn't regret going to is. they explain it by suggesting that she was groomed at the age of 15 and might have been wary of what she was saying in a camp surrounded by is sympathisers. and rashad ali, who is an expert in de—radicalisation, says is supporters can be turned round. we know in the uk we have worked over the last ten years with fairly hard—line violent extremists who have renounced their ideology, have remorse for their actions, and have taken part, actually, in helping others move away from extremist tendencies and violent ideologies. the kurdish red crescent says there are around 1000 new arrivals at al—hol just this morning.

decisions will have to be made soon about what to do with the british is supporters among them. daniel sandford, bbc news. schoolchildren across the uk have been taking part in a day of protests, calling for action on climate change. 0rganisers say pupils walked out of schools in more than 60 towns and cities, to highlight what they see as a lack of action by the government. manchester is one of the places where children took to the streets, from where frankie mccamley reports. we are angry that the government's not doing anything, but we also see it as important to fight for ourfutures. to all the politicians, listen to what we have to say. you failed at saving your own future, so now can you try and save ours? there's no time to rest. we have to do something to save the planet. chanting: this is what democracy looks like! different voices, one clear message. today was a day led by the children,

for the children and their future. thousands campaigned in dozens of protests across the country. they say you don't have a voice! a call for action in sheffield... what do we want? climate action! chanting in ullapool. .. marching in brighton... a real sense of urgency in cardiff and, in manchester, there was music. # born to love in everyone... before nine—year—old lilia had her say. i'm worried about climate change because of the animals. would you like it if your home was disappearing in front of your eyes? this is clearly the first time many of these pupils have ever walked out of school and, just by looking at the age of some of these, the first time they've ever been on a protest, but their message is clear. they want to protect the future of the planet and safeguard their future. the action is part of a much wider global movement, inspired by 16—year—old greta thunberg from sweden.

she's been striking from school every friday, calling on her government to lower its carbon footprint. you are not mature enough to tell it like it is. even that burden you leave to us children. her persistence later sparked protests across the world — from australia to belgium and ireland earlier this week. the government has said today's protests are a waste of lesson time and increasing teachers' workload, but the threat of school disciplinary action pales in significance to the danger these youngsters think the planet is under from climate change. frankie mccamley, bbc news, manchester. a man has been charged with the murder of three elderly men in exeter. alexander lewis—ra nwell, who's 27, from north devon, will appear in court on saturday. he's charged with murdering 80—year—old anthony payne who was found dead at his home on monday, and 84—year—old twins, dick and roger carter,

who were discovered just over a mile away, the following day. police in bulgaria have launched an inquiry into the trade in illegalfighting dogs, after a bbc investigation. they're looking for ivaylo nikolov, who offered to sell a dog ready to take part in organised fights. mr nikolov denied he was involved, when confronted by the bbc. more now on the bomb attack in kashmir. the indian government says pakistan will pay a heavy price for the attack which killed more than a0 indian security officials. a separatist militant group, jaish—e—mohammed, has claimed responsibility, and pakistan denies any involvement. from new delhi, our correspondent sangita myska reports. these are the anguished families, grieving for the fathers, sons and brothers killed in indian—administered kashmir‘s worst terrorist attrocity in recent memory. their coffins carried by fellow soldiers from the paramilitary force which yesterday became the target

of islamist extremists. the men's deaths have led to a new escalation between the subcontinent‘s two great nuclear powers, india and pakistan. the aftermath of the attack was caught on camera. this is all that was left of the bus, part of the huge military convoy of indian forces. this is said to be the suicide bomber, adil ahmad dar, one of a new generation of kashmiris radicalised in a region where the majority of the population is muslim. the islamist militant group, jaish—e—mohammed, has claimed responsibility. based in pakistan, it has been fighting for kashmir‘s independence for nearly 20 years. india says it has incontrovertible evidence that pakistan was directly involved. translation: i want to tell the terrorist outfits and their patrons that they have committed a huge mistake and they will have to pay a big price for this.

pakistan strongly denies the allegations and has accused india of carrying out human rights violations in the past. the two countries have fought three wars over who should control kashmir. india has hundreds of thousands of troops stationed here but security is getting worse. after the last major attack on indian forces two years ago, it launched military strikes inside pakistan. this attack has enraged many indians who are convinced pakistan is trying to destabilise their country. protests like these have erupte in several parts of the country protests like these have erupted in several parts of the country and are helping build pressure on narendra modi's government to take what people like this believe is decisive action. if they act like that, whether directly or through terrorists, we need to show our strength and retaliate. whatever they are doing, it is not acceptable in a civilised society.

tonight, india's prime minister laid a wreath for the victims. the question is what his next step will be. sangita myska, bbc news, delhi. this is bbc news. the headlines: the us president donald trump has declared a national emergency in an attempt to bypass congress and secure funding for his mexican border wall. let's stay with that story now. earlier, i spoke to andrew boyle who is a counsel in the liberty and national security programme at the brennan center forjustice. i asked whether he thought president trump calling a national emergency to gain funding for his southern border wall was a pragmatic move on his behalf. well, i don't think i see it that way. the president could have avoided a shutdown simply by signing the funding bill that was sent to his desk. he didn't have to declare

a national emergency alongside that, but he chose to do so. in theory, as we we re but he chose to do so. in theory, as we were hearing from chris buckler earlier, congress has the power to undo this declaration of national emergency. do you get the sense that there is enough political will to make that happen? well, certainly in the lead up to this national emergency declaration there were representatives from both sides of the idle who were saying that this was a bad idea, for different reasons. including mitch mcconnel, the head of the senate, a republican, who then turned around and was the one who announced that the president would be announcing a declaration of national emergency. and, therefore, it is difficult to tell what might happen in the senate, whether there would be a majority and, beyond that, is it a majority and, beyond that, is it a majority in the senate that would require a significant amount of republicans to join in the

resolution to terminate this national emergency. but that has been widespread concern between both democrats and republicans that this is an autocratic use of power and the president should not be going around congress's power of the person is way. but for those, perhaps, observing all of this beyond washington, dc, they may well wonder, well, isn't this power to declare a national emergency design for this very situation where the president's you is such that he needs to override the view of congress and why is it so damaging if that is allowed to happen? well, i think the main idea behind emergency powers, whether it is in the united states or elsewhere, is an executive might need extra powers for a short amount of time to deal with a true national emergency. what is concerning here at is that the issue of immigration or drugs or

whatever claims of the president was to put for is not a situation that has arisen recently. this has been debated, the president has been seeking money from congress both from the prior congress when it was controlled by republicans, and india's congress where the democrats control the house, and he hasn't been able to convince them that he should receive all of the funding that he is seeking —— in this present congress. he is using an emergency declaration as a substitute for what should be a democratic process of the president convincing congress to fund his priorities. —— the theories he is using. leg wrap a new study suggests the majority of knee and hip replacements last much longer than previously thought. researchers at the university of bristol say replacementjoints can remain effective, for up to 25 years. it's hoped the findings will help doctors and patients decide when to carry out surgery. 0ur health correspondent, jenny walrond, has more. 80—year—old wendy, 17 years

on from a hip replacement, cycles more often than she drives. i was in intense pain, so it restricted everything i wanted to do. even cycling was getting quite difficult. and then i had the operation and i woke up and it was like a new person. it was magic. hip and knee replacements are two of the most common types of surgery. until now, doctors haven't been able to give patients accurate information about how long they will continue to work. but a study published in the lancet journal shows that manyjoint replacements last for 25 years. for knees, it's over 80%, and almost 60% of hip replacements, much longer than previously thought. having surgery a second time on a replacement is more expensive and less likely to be successful, so knowing that the joints will last longer could help both patients and surgeons to make more informed decisions. the main implication is that

patients can go into their surgery, or when deciding whether to have surgery, with their eyes open. they understand exactly what the risks are and exactly how long this hip replacement or knee replacement is likely to last. the nhs in england and wales carries out almost 200,000 hip and knee replacements each year. knowing how long they will last allows the health service to plan its resources at a time when our ageing population means more people will need them. today's research can reassure patients like wendy that they too can stay active for longer. she is hoping her hip will last at least another ten years. one of my grandsons wants me to take him to barbados when i'm 90. so i've got to live until i'm 90 and take him to barbados like he wants me to do. hopefully, it will be good. jenny walrond, bbc news, bristol. there have been numerous tributes

to the award—winning author, andrea levy, who's died at the age of 62. she'd been receiving treatment for cancer. she made her name with the novel small island about the windrush migrants, who in the late 1940s, moved to britain from jamaica, and she was widely regarded as the first black british author, to achieve both critical and commercial success. lizo mzimba looks back at her life. archive: the empire windrush brings to britain 500 jamaicans... in 1948, andrea levy's father arrived on the empire windrush. it was the inspiration for her novel which charting the hopes and struggles of a generation, small island. it went on to win multiple awards and be adapted for tv and the stage. when it first came out, you know,

i sort of said to the publicist, "just give me a basket, i'll take it door—to—door". i really thought nobody was going to be interested. you think your white skin makes you better than me, don't you? we both finished fighting a war for a better world. we was on the same side. if anybody wants to have a look at how the windrush generation arrived here, and how we, the sons and daughters of the windrush generation, survived and are surviving, they have to refer to andrea's work. that's why, for my generation of black people in this country, there's always a andrea levy book on our bookshelves. andrea levy had grown up in london, and in her 30s had begun to write. her work was driven by her own curiosity about where she'd come from. it was a story that eventually took her back to britain's role in the caribbean slave trade. for every one slave who went to america, 12 went to the caribbean. it was massive — it was massive. i have seen books on british history that don't mention slavery, you know, and you just sort of... it beggars belief. the character she created was a house slave who bore a child to an estate master and then later, she discovered that that was the story of her own great—great—grandmother. andrea levy, an author whose life and work was rooted in the story across generations of two small islands, britain and jamaica.

next week, amp is looking into disinformation fake news look into their final disinformation fake news look into theirfinal report on disinformation fake news look into their final report on how our personal data has been manipulative or political influence at the highest levels of power —— mps. here is our media editor. when you report fake news,

which cnn does a lot, you are the enemy of the people. in just a few years, the phrase "fake news" has entered mainstream culture. then they've got the nerve to say we're fake news. you and your colleagues have fallen into this trap of fake news. it's a calculated and corrosive term, often deployed by those trying to discreditjournalism, but the term fake news captures an urgent issue confronting modern democracies — disinformation in the digital age. in america, authorities are investigating social media's role in russian interference in the presidential election of 2016. the nearest thing in britain is the house of commons select committee enquiry into disinformation and fake news. over the past year, it has taken evidence from regulators, tech companies and those at the centre of allegations around the targeting of voters during the brexit referendum. the enquiry is looking at four areas in particular. first, whether social media firms are neither platforms nor publishers but a new kind of company which has legal liability for harmful

or illegal content. then there's the issue of electoral law. the committee wants new rules for digital campaigns, not least around the issue of shell corporations being used to hide identities. next, what was the precise role of cambridge analytica? the committee has looked at the impact of the british data firm and has said its ceo misled them. finally, there's the kremlin question — to what extent, if any, did russia weaponise information during the brexit referendum, and why is there such a gulf between the government's warnings about security and the response of tech companies? facebook is taking disinformation more seriously and has appointed the charity full fact as its first independent fact—checkers in britain. one thing i'm aware of is it might not be facebook in ten years' time, or it might not just be facebook. we're going to need to write rules through open, democratic, transparent processes that apply to all these companies. last year, facebook was fined the maximum £500,000 by the information commissioner

for serious breaches in data protection law. have you seen satisfactory evidence that they've learned and changed? i am hopeful that we'll see more of that change and i... that suggests we haven't so far. i haven't so far. i think it's yet to be seen. what do they need to do to comply with this regulatory regime which they are currently not doing? it's not good enough to say, here's what we're doing. we need a proof point and we need... facebook can't mark their own homework. social media platforms like to think they're a benefit to democracy. across the west, that's in dispute. amol rajan, bbc news. ariana grande has broken a series of chart records, with her new number one single break up with your girlfriend, i'm bored. she's the first female artist in uk chart history to replace herself at the top of the chart. and she's the first female artist since madonna in 1985 to have singles at number one and two in the charts. now the weather with nick miller.

hello. judging by the weather over the past few days it looks like spring is in a hurry to get going. friday was warmer than thursday with a top temperature of 17.5 in wales. here is the view from wrexham, you can see the extent of the blue sky. 0ver over the weekend we are still in this low a mild air heading in from the south. there are a few weather system is coming our way. we cannot rely on clear blue skies. here is the first week one that is moving across northern scotland, outbreaks of rain. another one will come in during sunday. for the weekend, it is still miles. temperatures are

above average for the time of year. it will be breezy, especially on sunday, dry for many. the weather systems will bring some rain, especially into western parts of the uk. already a saturday begins in so different. not as cold as recent mornings, a lot of cloud around as well. the leftovers of some overnight rain affecting western and northern scotland before that eases. we are going to keep a loss of cloud feeding into southern england. that will edge further north. it is sunny spells rather than clear blue skies on another breezy day. i look at things at four o'clock in the afternoon. suntan coming back into the channel islands. hill fog for the. sunny spells in northern england. brexit nick love for northern ireland in scotland. the best of the sunshine will be in the east. the northern isles singhs patchy rain. could see the odd shower pushing into cumbria and lancashire. most places are looking

dry. 0vernight we will get rid of quite a bit of the cloud. clearing skies. emmrich is not going down too far into sunday morning. no issues with frost. —— temperatures. here never “— with frost. —— temperatures. here never —— next weather system. it will weaken as it slides further is during the day. we will not see much in the way of wet weather. it is a windy day with this weather system are preaching and moving through during sunday. there is more suntan around ahead of this system. a fairly narrow one as well. —— sunshine. have you bursts of rain into northern parts of scotland for a time. quite windy in western scotland. gusts up to 50 mph or so. temperatures on the up a little bit more compared to saturday. especially where you get to see some sunshine. not as mild into the start of next week. a paramount of cloud around. —— a fair and amount of cloud around. this is bbc news, the headlines: the us president donald trump has declared a national emergency in an attempt to bypass congress

and secure funding for his mexican border wall. democrat leaders have described it as "a gross abuse of power" and announced an immediate investigation into the declaration, which they say violates the constitution. relatives of shamima begum, the teenagerfrom london who went to syria, to join the islamic state group in 2015, have asked the government to help them bring her home. britain's home secretary, sajid javid, has made it clear he'll try to prevent the return of people who've supported terrorist organisations. five people have died after a gunman opened fire