welcome to bbc news. broadcasting to viewers in north america and around the globe. my name is lewis vaughanjones. our top stories: president trump remains hopeful that the summit with kim jong—un will go ahead after north korea threatens to cancel the talks. the home of the ousted malaysian prime minister is raided by investigators, as the man he once jailed hails a "new dawn". enough of intimidation! no more! we have entered a new era. with shortages of food and medicine, thousands of venezuelans cross the border to brazil to seek medical care. starring roles for prince george and princess charlotte

at the royal wedding, but it's still not clear whether meghan‘s father will be there. welcome to bbc news. president trump has hinted that the much—anticipated summit between him and the north korean leader, kim jong—un, might not go ahead next month. he was speaking after the authorities in pyongyang threatened to cancel the talks, if the us continued to push for an end to its nuclear weapons programme. our north america editor, jon sopel has more details. it is an annual event, and each year it upsets the north — a military training manoeuvre involving 100 warplanes from the us and south korea. and last night, pyongyang engaged in their own live—fire exercise, with a threat to shoot down next month's planned summit. but, if this was provocation, donald trump was doing his best not to react. his comments in the oval office were conspicuously muted. we haven't seen anything, we haven't heard anything.

we will see what happens. though, in the hubbub, he was asked whether he was still insisting on north korea getting rid of its nuclear programme. yes, he says, but this is the thorniest issue. denuclearisation means one thing to the us, and something completely different to the north. the us national security adviser has said disarmament must be complete, verifiable and irreversible. he says it should be what colonel gaddafi did in libya. i think we're looking at the libya model of 2003—2004. we're also looking at what north korea itself has committed to previously. but look what happened to colonel gaddafi. without his weapons he had lost his insurance policy, and he was ousted from power. north korea isn't going to go down that route. and what was noticeable this morning was that the white house press secretary seemed to put quite a distance between the president and mr bolton's libya model. i'm not aware that that's a model we're using, but i would... bolton said that over the weekend.

i haven't seen that that's a specific thing. i know that comment was made, but there is not a cookie—cutter model on how this works. this is the president trump model. he's going to run this as he sees fit. donald trump has invested heavily in making the summit a success, and there is no doubt there is determination in the white house that it should go ahead. but not at any price, and there are some intractable issues that could still derail it. so will we see an even more improbable handshake moment? in seoul, on a film set, people queue to replicate it. president trump wants this to be his framed moment in history, but we're not there yet. and you can get much more detail about the proposed north korea summit on our website. you'll also find background analysis on why north korea has changed its tune. just go to bbc.com/news. let's take a look at some

of the other stories making the news. european union leaders have agreed to try to keep the iran nuclear deal alive and maintain their economic cooperation with tehran. meeting in bulgaria, the 28 also agreed a plan for dealing with trade tariffs that president trump is imposing on steel and aluminium, saying that the "eu will not negotiate with a gun at its head". more than 300 women who were sexually abused by larry nassar are to share $500 million in compensation. many of the women gave testimony against the former us gymnastics team doctor, which resulted in him being jailed for life. facebook‘s mark zuckerberg has agreed to face european parliament members to discuss privacy concerns. the company's chief executive could be in brussels as early as next week. it follows his testimony before us congress over the leaking of users‘ personal data.

the man behind some of the world's most famous superheroes is suing the company he co—founded for over a billion dollars. stan lee accuses pow entertainment of coercing him into signing over his name and image rights. the company says the allegations are completely without merit. president trump has filed a lengthy document with regulators in washington admitting that he'd reimbursed his personal lawyer more than $100,000. the money is understood to have been used to buy the silence of the porn star, stormy daniels. a short time ago i got the latest from our correspondent chris buckler in washington. this is an ethics disclosure. we don't know exactly how much was paid or what the purpose exactly was it for. we can say between $100,000 and $250,000 was paid by donald trump to michael cohen. it is listed as being expenses which michael cohen incurred. and we know what his big expense was, that was $130,000 paid to the porn actress

stormy daniels before the days between the 2016 presidential election. essentially to stop talking about her alleged affair with donald trump. an affair that he continues to deny. of course, there have been many questions about this payment. it was not included in a previous financial disclosure and the government agency responsible for taking in these payments and taking in the details has made clear that it should have been as far as it was concerned. now, that's denied by the white house. but it again shows questions and raises questions about whether or not donald trump tried to at some stage hide this payment. it was only a matter of a month ago that donald trump was denying knowing any details about this cash or where michael cohen got the cash to pay stormy daniels.

that is the key point, this big question about whether this payment was in fact an illegal campaign payment. yeah, it comes down to this question about exactly why was the payment made? they are continuing to deny, certainly mr trump's lawyers are continuing to deny, that it was anything to do with campaign finances. however, it is a question that is continuing to be asked because there are many who believe that potentially this payment and stopping stormy daniels from speaking may have influenced the presidential election and if it was a campaign contribution it would have broken campaign finance rules. therefore, it is something that is being investigated. i mentioned the us office of government ethics which has released this information, along with the declarations it has also released a letter which it has sent to rod rosenstein, the deputy attorney general, and the man who has overseen that special counsel investigation into allegations that russia interfered with the us presidential election. in that letter he specifically says that this declaration should have been made earlier and he is sending

both this financial declaration and the last one to rod rosenstein and in this he says, "you may find the disclosure relevant to any enquiry you may be pursuing." it gives you an indication that the questions have not been asked about this payment. chris buckler in washington. malaysian police have searched the home of the ex—prime minister najib razak, one week after he lost the national election. the new prime minister, mahathir mohamad, previously said he was looking into re—opening corruption investigations against his former ally. mr najib denies any wrongdoing — he was put under a travel ban at the weekend. this week, the new prime minister also freed the opposition politician anwar ibrahim, a former rival, who was jailed for suddenly, a conviction widely seen as politically motivated. 0ur correspondent, jonathan head spoke to mr anwar following his release. one of the things that he was very

keen to stress, once he was out and talking to supporters, was that he was very confident the job that dr mahathir is doing, that he is very happy to let him do thatjob. they have an agreement, it is not written is down, but it is one dr mahathir himself as repeated, that he will hand over power, the position of prime ministry to anwar ibrahim within two years. anwar ibrahim is looking quite tired, and older than when i saw him before he went into prison. he was saying that let him govern, i am in no great rush to get into politics, would be happy to travel a little bit and see my family. he also stressed that as far as things are going, he is very coupled with the processes that have been undertaken in these last few days while he has still been incarcerated. importantly, cabinet positions are starting to be

confirmed will stop he raised no objection, for example, to the secretary general of the democratic action party, the mainly chinese party, taking the finance ministry. it was formerly controlled by prime minister najib razak. the help of violence that may close. it is an important symbol that they will be apportioned fairly between the coalition partners and according to merit. as far as the message we got from anwar ibrahim, he is comfortable with the way things are and is not in a great rush. venezuela will hold presidential elections this weekend, amid an economic backdrop that is getting worse by the day. amid mass shortages of food and medicine, many pregnant women are fleeing the country to seek proper medical care. but that's hitting venezuela's neighbours hard, as katy watson reports from boa vista in brazil, near the border with venezuela. meet baby max, a brand—new life and, for his mum, a brand—new start.

back home in venezuela she rarely ate more than one meal a day. and with a packet of nappies costing four months‘ wages, she had little choice but to leave. the wards keep filling up with little venezuelans. the baby boom's reached crisis point. so there's 64 beds in this hospital, and they say that every day they are full. it's the only maternity hospital in the state. doctors say it's reached crisis point. translation: we're running out of supplies, basic medicine and beds. we are seeing cases of anaemia in pregnant women and urinary infections, because there is no medicine to treat them in venezuela, and people there aren't vaccinated. we're trying to fix all these problems, and i think this situation is going to get worse. for the more than 800 venezualans arriving every day, this is their new reality, trying to live life as normal,

but it's not easy. they've fled poverty only to be greated by destitution. there's no running water in this camp, no toilets either. and add to that, it's the start of rainy season and every afternoon there are huge downpours. and you walk through this camp, the tents are absolutely soaked, you get a feeling just how miserable life is for the venezualans here. ifound karina and herfriends waiting on the street, unsure where to go. eight months pregnant, karina tells me she had to sell the baby milk she'd brought with her from venezuela to pay for her transport here. translation: in venezuela you have to buy everything for the birth, and it is all so expensive. i also have two brothers who are dying because they can't get the medicines they need. my mum didn't want me to come

here in my condition, but i can't stand by and watch my brothers the way they are. i have to try and help them. there's no room for karina at this un—run camp. young families are given priority, but there just aren't enough tents for everyone. little max is taken home to meet his family. his big sister is excited to see the new addition. "home sweet home," says his mum. but she and her husband richard tell me they are worried about the mosquitoes and the heat in these tents. the family arrived in brazil with nothing. they still have very little. not even any clothes for baby max. many have lost everything, including

hoped for a brighter future. katy watson, bbc news, in boa vista. stay with us on bbc news, still to come: laurel, laurel. what are you hearing? we look at the sound experiment that's divided social media. the pope was shot, the pope will live — that's the essence of the appalling news from rome this afternoon that, as an italian television commentator put it, terrorism had come to the vatican. the man they call the butcher of lyon, klaus barbie, went on trial today in the french town where he was the gestapo chief in the second world war. winnie mandela never looked like a woman just sentenced to six years injail. the judge told mrs mandela there was no indication she felt even the slightest remorse. the chinese government has called for an all—out effort to help the victims of a powerful earthquake, the worst to hit the country for 30 years.

the computer deep blue has tonight triumphed over the world chess champion, garry kasparov. it's the first time a machine has defeated a reigning world champion in a classical chess match. america's first legal same—sex marriages have been taking place in massachusetts. god bless america! this is bbc news. the latest headlines: president trump remains hopeful that the summit with kim jong—un will go ahead after north korea threatened to cancel the talks. the home of the ousted malaysian prime minister is raided by police investigators. five of his other properties are being investigated as part

of a look into potential money laundering. a massive student protest in chile has descended into violence. police are using tear gas and water cannon to disperse demonstrators. thousands had gathered to demand a "non—sexist" education. andy beatt reports. clashes on the streets of chile's capital. what was meant to be a peaceful protest by students ended in violence and multiple arrests. tens of thousands had joined the demonstration in santiago demanding an end to sexual harassment at high schools and universities. translation: this movement is historic, and the march sets a precedent. it's the first kick by the women of chile, demanding change across the country. students and feminist groups say complaints of gender violence in classrooms are routinely ignored and are few measures are in place to protect women's rights. they also denounce a culture of profit

taking in education. it follows a ban on four profit firms from controlling universities. this is one of the first major protests since the president took office in march for a second time. his first administration was also marked by widespread student unrest. he's trying to defuse tensions, insisting that access to free higher education is here to stay. andy beatt, bbc news. experts have found more evidence of the harm caused by disrupting our body clocks. they're linking it to depression and bipolar disorder among other things, as our science correspondent, james gallagher, reports. inside every one of us is a biological clock keeping time. it drives huge changes in the way our body works. it is why you want to sleep at night and be active during the day. moods, strength, hormone levels, body temperature, metabolism

and even the risk of a heart attack all fluctuate in a daily rhythm. but we are getting very good at disrupting our body clocks. many of us are guilty of being up late at night checking our phones? thers‘s always something else to tweet, an article to read, another message to send. we know that messing with our body clocks is bad for our health. ask someone how they feel after a night shift or when they are jet lagged. but now there are concerns it could also be bad for our mental health. the study looked at 91,000 people, it showed that those with disrupted body clocks were more likely to have depression and bipolar disorder, and they were more lonely and less happy. i think the big concern is these devices that people use during the night time have blue light exposure which can affect your sleep rhythm. that needs more research but i think people should be vigilant and i think a good general piece of advice would be for people to turn off their mobile phones in the evening and not look at them until the morning. but for many of us it seems that finding time to get enough sleep is a challenge.

stressed and just can't sleep early. i think your body becomes acclimatised, like having a child for the first time, you get no sleep and you get used to having no sleep. i stay up too late, i watch box sets, and can't stop watching the next episode. this study on our bodies‘ time piece is not perfect, it cannot say for certain that disrupting our natural sleeping pattern is damaging our mental health. but the findings do add to a growing recognition of the importance of the body clock on both our health and well—being. james gallagher, bbc news. princess charlotte and prince george will be among the bridesmaids and page boys at prince harry‘s wedding to meghan markle on saturday. however, it‘s still not clear who will walk the bride down the aisle, following reports that meghan‘s father, thomas, is being treated in hospital.

our royal correspondent, nicholas witchell, has the latest. on her way to her daughter‘s wedding — meghan markle‘s mother doria ragland left her home in california for the flight to london. good luck with the wedding! conspicuously not travelling was markle‘s father thomas, who, according to reports, is in hospital in mexico — possibly undergoing surgery, probably not attending the wedding. though kensington palace has still said nothing officially. leading the page boys and bridesmaids on saturday will be prince george and princess charlotte, who played the roles at pippa middleton‘s wedding last year. harry and meghan will have ten young attendants — six bridesmaids and four page boys — ranging in age from two to seven. and while the leading players prepare, so too does the supporting cast. the harmlessly fixated, who attend all major royal events, have already bagged their places just outside windsor castle, to the fascination of foreign broadcasters. is this level of interest representative of the country as a whole? well, of course it‘s not.

indeed, according to some polls, among a good many people there is, well, polite indifference to it all. but not here in windsor, a town whose identity is aligned with royalty, whose rooftops have been commandeered by international broadcasters, and from where this saturday this royal wedding, with its international twist, will be broadcast to audiences around the world. nicholas witchell, bbc news, windsor. and we will of course have live coverage of the royal wedding on saturday across the bbc. but you don‘t have to wait that long. we‘ll be live in windsor from thursday to bring all the build up, and, of course, the big day itself. the national air and space museum in washington dc has been open

for more than 70 years and is one of the nation‘s most popular attractions. now, for the first time, its director is a woman. ellen stofan is a former nasa scientist who spent her career studying planets. jane o‘brien went to meet her. ellen, thank you for having us here. after 25 years in nasa, what made you decide to become the director of this museum? you know, here at the smithsonian‘s national air and space museum, we actually have the largest collection of aviation and space artefacts in the world. what better place to try to get the next generation of explorers interested in science, technology, engineering, and math. you‘re the first woman to become the director of this museum. why is it that women are still so underrepresented in the space industry? you know, it‘s really a pipeline problem. so, you really have to attack all parts of the pipeline. issues of the pipeline, from girls at age 11 to 13 where they get discouraged and disinterested in science, to when they go to school where they‘re not encouraged,

they‘re even sometimes harassed, to say how do we attack this problem at every level to make sure women are made to feel welcome? you‘ve always focused on mars. what‘s so special about mars? i think mars is inspiring. as a scientist, though, i‘m really keen to get humans to mars because we think that, at about the same time life evolved here on earth, life also evolved on mars, but probably after 500 million years or so, the conditions changed, so life either migrated underground on mars or went extinct. so it‘s going to be hard to find. so that means i think you need people on the surface breaking open rocks and doing what scientists do to notjust find evidence of past life on mars but to try and understand it. what are the implications of life that evolved on another world for life here on earth? now, this is a word that‘s been listened to millions of times, and has led to disagreements

around the world. listen closely. what do you hear? laurel. is it "yanny?" or it "laurel?" laurel. the audio was posted online, with internet users split as to how it sounds. experts say people whose ears emphasise high frequencies hear "yanny," people who hear lower frequencies hear "laurel." it seems to happen when people change headphones or speakers. also how sensitive your ears are to various frequencies. because the "yanny" information seems to be in the high frequency sound and "laurel" for low. also what part of the sound you are paying attention to. there are many factors that come into play. for example, what voices and accents you‘re used to hearing.

also, what you recently heard. what you are paying attention to. all of that contributes. it is definitely laurel. i don‘t know what all the fuss is about. and look at this baby aardvark. it is flourishing at prague zoo. they do not know the gender. dna from its fur is needed for that. it is not very bothered about that. a reminder of the top story. president trump has hinted the much anticipated summit between him and north korean leader kimjong—un may not go ahead next month. he was speaking after authorities in pyongyang threatened to cancel talks if they ignored discussion about

denuclearisation. the weather for the rest of the week and the weekend really is looking very promising. as far as the short term is concerned, really chilly this morning. we‘ve had clear skies, so the temperatures have dipped away and in fact in some areas to barely above freezing. there‘s been quite a big gap in the cloud across the uk. you can see scotland, northern ireland and northern england so here, the lowest temperatures. you can see those cool colours here from scotland through the lake districtjust about into wales and northern ireland. in the south, slightly less cold. around 8—10 degrees. newcastle, first thing in the morning, possibly around two degrees above freezing but lots of sunshine on offer and it will not change through the morning of the afternoon apart from a bit of fair weather cloud building up. that‘s pretty much it. the temperatures not spectacularly high because it would have been at chilly morning. around 18 in london, 13 in newcastle, maybe 15 degrees in belfast and thursday evening is looking absolutely fine across the uk. a beautiful end to the day is forecast. let‘s look at friday‘s weather forecast. lots of fine weather around

but the weather will go downhill a little bit, at least for a time across western scotland, possibly some spots of rain as well but for the bulk of the country on friday, it‘s looking fine. maybe 19 in london, 16 in newcastle. then the important weather forecast for the weekend, high pressure anchors itself across the uk. the weather fronts are not too far away, just to the west of our neighbourhood but they will stay, can‘t move in any closer, because of that area of high pressure keeping the fronts at bay, the winds will be coming in from the south, dragging in warmerair, and the weather looks absolutely perfect in windsor on saturday, starting at a fresh 9 or 10 degrees and warming up to the low 20s by the time we get to the afternoon. and it promises to be a fine day across the whole of the country on saturday, light winds as well, lots of sunshine around, maybe just a bit of fair weather cloud again, and 20 degrees in cardiff, 20 there in liverpool. eastern scotland also getting temperatures in the high teens as well. now, the weather does change a little bit in the north—west on sunday. a weather front moves in so there is some rain in the forecast for belfast,

for glasgow, maybe getting into edinburgh as well. but for england and wales, the weather should hold and, again, another fine day on the way on sunday. so many parts of england and wales having a dry weekend all the way through. how about early next week? looks like the warm weather is going to win. we‘ll start to draw in warmth once again from europe and the temperatures will keep on climbing. bye— bye. this is bbc news. the headlines: president trump has said it‘s not clear if his planned summit with the north korean leader kim jong un will still go ahead, but he‘s still hopeful. pyongyang has threatened to cancel the talks if washington continues to press for its unilateral nuclear disarmament. police in malaysia have searched the home of the former malaysian prime minister, najib razak, as part

of a money laundering investigation. meanwhile the opposition politician, anwar ibrahim, celebrated a "new dawn" for his country on his release from prison michigan state university has agreed to pay $500 million in compensation to female gymnasts sexually abused by the american sports doctor, larry nassar, who worked there. in january, nassar was jailed for up to 300 years on hundreds of counts of abuse. now on bbc news, hardtalk.