welcome to bbc news, broadcasting to viewers in north america and around the globe. my name is reged ahmad. our top stories: rifts revealed between world leaders as they gather in buenos aires for the 620 summit, with tension over trade, climate change and ukraine. a 7.0—magnitude earthquake hits alaska, near the city of anchorage, causing widespread damage. a massive data breach at the marriott hotel group. hackers steal the personal details of hundreds of millions of customers. and michelle obama's memoir becoming is the bestselling book released this year in the us, just 15 days after publication. as the 620 summit begins in buenos aires, the prospects for warm discussions between the world's leaders are looking unlikely.

russia's naval clash with ukraine is causing friction, the us—china trade war isn't showing any signs of cooling, and the murder ofjamal khashoggi has thrown a harsh spotlight on the saudi crown prince, mohammed bin salman. our north america editor jon sopel is in buenos aires. in his brief time on the world stage, donald trump has been seen as the disruptor in chief. but not this time round. the 620 is a chance for world leaders to discuss matters of mutual interest — speed dating for the ruling class, if you like. but after the murder ofjamal khashoggi, they'd quite like to be able to cold shoulder the saudi leader, mohammad bin salman. the problem is they love his lucrative defence contracts and his country's oil more. he and donald trump exchanged pleasantries, but had no meeting. vladimir putin, on the other hand, looked overjoyed to see him. high—fives all round. theresa may had a sit—down with him, where she raised the murder of the saudi journalist

and demanded full transparency in the investigation. and president macron of france had this slightly tense exchange. donald trump had been due to sit down with vladimir putin, but the president cancelled the meeting over the seizing of three ukrainian vessels. the russian leader stares ahead impassively as his american counterpart walks past. 0n the basis of what took place with respect to the ships and the sailors. that was the sole reason. but where the us president still leaves other world leaders deeply uneasy is over his protectionist, america—first attitudes toward trade. this has been a battle... but today, the signing of a new trade agreement between mexico, the us and canada. the usmca is the largest, most significant, modern and balanced trade agreement in history. all of our countries will benefit greatly. it is probably the largest trade deal ever made, also. though it brought this broadside

from the canadian prime minister. make no mistake — we will stand up for our workers, and fight for their families and their communities. and donald, it's all the more reason why we need to keep working to remove the tariffs on steel and aluminium between our countries. the key meeting of this 620 will take place tomorrow evening, when most of the other world leaders are already on their way home. with donald trump threatening further tariffs against the chinese, his meeting with president xi is absolutely critical. it's no exaggeration that the future direction of the global economy could be decided at their meeting. the protesters on the streets of the capital this afternoon are demanding a fairer world and action on climate change. but donald trump marches to another beat, much more concerned about american business and american exports, and few people hold out much hope of a dramatic breakthrough with the chinese.

jon sopel, bbc news, buenos aires. a powerful earthquake has hit alaska, causing damage to homes and businesses and ripping apart roads. the 7.0—magnitude quake hitjust north of anchorage at about 8:30am in the morning local time. several large aftershocks prompted a tsunami warning to be issued, but that has now been lifted. james cook reports. alaskans are used to earthquakes, but sometimes you need luck on your side too. holy smoke. this quake struck at 8:30am in the morning... can you get out of there? ..buckling roads and leaving this road stranded, but safe. inside, there was confusion. earthquake drills are all very well, but reality can be quite different. some pupils were already at school. this boy's instinct was to start filming as the children took cover.

there are tvs on the ground, you can see this right here... the first quake caused damage inside buildings, forcing all of the local tv stations off the air. many people had returned to their offices when a powerful after—shock sent them scrambling out again. scientists calculated that the epicentre of the first, most powerful tremor was under an inlet north of anchorage, and issued a tsunami warning. president trump responded on twitter, saying that the great people of alaska had been hit hard by a big one. he promised that the federal government will spare no expense in its response. every year, thousands of earthquakes shake alaska. the full extent of the damage from this one is not yet clear, but it was far bigger than most, rattling even the resilient people of the frozen north. james cook, bbc news. let's get some of the day's other news:

belgian police have used water cannon and tear gas against protestors who allegedly threw rocks at the prime minister's office in brussels. the demonstration was apparently inspired by the yellow vest protests which took place across france against increases in fuel prices. france's president marcon has raised fuel duties to try and reduce emissions which cause global warming. hollywood actors angelina jolie and brad pitt have reportedly reached an agreement over the custody of their six children, following two years of bitter negotiations. the couple separated in september 2016 after more than ten years together. ms jolie filed for divorce, citing irreconcilable differences, and sought primary custody of their children. the hotel group marriott international has revealed that it has fallen victim to a mass data breach which could involve the personal details of up to 500 million people. the fbi is among various organisations that have launched investigations into the hack

on the company's starwood division. marriott shares closed down more than 6%. caroline rigby reports. marriott international is one of the world's largest hotel chains, and this ranks as the second—biggest corporate data breach in history. millions of customers affected, potentially across thousands of hotels, their personal information compromised. hackers accessed the booking database of the group's starwood properties, including brands like le meridien, st regis and the sheraton. it may have happened over a four—year period, from 2015 until september of this year, when the company was first alerted to the issue. but marriott—branded hotels weren't affected because they use a separate reservation system. the company says the database contains records of up to 500 million customers, with nearly 330 million of them having some combination of highly sensitive personal data stolen.

that could have included details such as their name, passport number, date of birth, and in some cases, credit card numbers — even if the information was encrypted. this attack highlights just how vulnerable hotels can be, because they demand high amounts of information from guests and then keep hold of it. the rarity is quite significant. if we look at some of the major data breached in the past couple of years, only a few have reached the 500 million and above. of course, the more notable yahoo breach several years ago, but that, of course, only contained some basic information regarding account information. the one that's significant in this case is the actual type of data that's stolen, which is much more sensitive and can be significantly abused. in a statement, the chief executive of the us—based company said: marriott says it is e—mailing those affected, and has set up a dedicated

helpline and website with information about the breach. the fbi and a number of regulatory bodies are now investigating how it happened and whether the group reacted fast enough. marriott now faces the possibility of heavy penalties, including millions of dollars in fines. caroline rigby, bbc news. the uk universities minister, sam 6yimah, has resigned from his post and says he will not support the government over the eu withdrawal bill. his resignation comes after it was confirmed that britain is planning to build its own satellite navigation system, to rival the eu's 6alileo project, which is in turn a rival to the us—led 6ps. the uk had wanted to stay part of 6alileo after brexit, but the eu said it would be banned from secure parts of the programme. in response theresa may, the british prime minister, pulled out of the project and confirmed the uk will instead build its own system, at a cost estimated to be $4 billion. mrs may will hold talks on saturday with world leaders at the 620

summit, and at the top of her agenda, of course, is brexit. meetings with leaders from australia, japan, and canada will focus on the opportunity for trade after the uk leaves the european union. she is also expected to meet chilean president sebastian pinera. the bbc‘s tim willcox has been speaking to him about life after brexit. i first interviewed president sebastian pinera eight years ago, during the rescue of the chilean miners high up in the atacama desert. this time, at the chilean embassy in buenos aires, i asked about the issues making world headlines now, and it began with a trade war between the united states and china. the trade war, the commercial war between china and the us, has to come to an end. because

it is damaging, not only china and the us, but the whole world. but on trade, the rumours are that they won't even be a joint communique at the end of this 620. won't even be a joint communique at the end of this g20. we have done oui’ the end of this g20. we have done our best effort to reach an agreement, and i hope that those rumours arejust agreement, and i hope that those rumours are just rumours, agreement, and i hope that those rumours arejust rumours, and agreement, and i hope that those rumours are just rumours, and that we will reach an agreement, and the us and china will start the process to reach an agreement to end this nonsense of this tariff and commercial war that is damaging everybody. and if there is no communique signed, will this summit have been a failure? of course, of course, and it will be a failure that will cost us a lot. what about the tensions created by russia and ukraine? vladimir putin is here today, and indeed, the saudi crown prince. did you greet him, did you say hello to him and shake his hand? idid. we say hello to him and shake his hand? i did. we have this problem with the murder of khashoggi, of course that

something that can't be accepted, particularly the way it was. so i hope that all of them will realise that we cannot tolerate this sort of thing, we cannot accept that. but when you shook the hand of the crown prince, i mean, president erdogan of turkey is suggesting that he knew about this murder. i mean, if that is the case, if there is no independent investigation, what should happen? look of course i am in favour of should happen? look of course i am infavourofan should happen? look of course i am in favour of an independent investigation. we cannot tolerate a murder like this. a man of this kind murdered, so cruel. but that doesn't mean that we cannot talk, because if we don't talk, if we don't try to reach solutions, then the outcome will be much worse, and saudi arabia will be much worse, and saudi arabia will have to face its responsibilities. but russia hasn't faced international... i mean, the annexation of crimea the international community thinks is illegal. it is illegal, and the international community has not accepted it. how do you feel about

bolsonaro being elected as the new leader of brazil? well, we know what bolsonaro has said. ifully leader of brazil? well, we know what bolsonaro has said. i fully disagree with many of his sayings, but particularly his words about women, diversity, minorities, idon't particularly his words about women, diversity, minorities, i don't agree with that. what i prefer to judge president bolsonaro for what is going to do as president, and not for what he has said as a candidate. final thought, do you think that brexit for the uk is a disaster?” think that what the united europe should have done is produced this huge bureaucracy for the government, because if they do that i think the reasons for brexit will come down dramatically. so the eu is as much at fault? i think the eu has to realise that they have to serve the people, and not the other way around. stay with us on bbc news. still to come: it is the third fatal mass stranding of whales within a week.

we will head to new zealand to find out what's to blame. it's quite clear that the worst victims of this disaster are the poor people living in the slums which have sprung up around the factory. i am feeling so helpless that the children are dying in front of me and i can't do anything. charles manson is the mystical leader of the hippie cult suspected of killing sharon tate and at least six other people in los angeles. at 11am this morning, just half a metre of rock separated britain from continental europe. it took the drills just a few moments to cut through the final obstacle.

then philippe cozette, a minerfrom calais, was shaking hands and exchanging flags with robert fagg, his opposite number from dover. this is bbc world news. the latest headlines: world leaders have gathered in buenos aires for the 620 summit — but there's tension over trade, climate change and the situation in ukraine. a 7.0 magnitude earthquake has hit alaska — near the city of anchorage, causing widespread damage. new zealand has experienced its third fatal mass stranding of whales within a week — a rate that experts say is uncommon even in a country that is no stranger to such events. 50 pilot whales beached themselves on the remote chatham islands on friday, though up to forty others managed to return to the sea.

last weekend almost three times that number of pilot whales died on stewart island. ten pygmy killer whales were also stranded at ninety mile beach, on the coast of northland province, on sunday. karen stockin is a marine mammal scientist based at new zealand's massey university and strandings coordinator for the international whaling commission. i asked her earlier whether she believes the number of strandings is increasing overall. we are definitely what in we consider a strandings period at the moment, strandings season in new zealand goes from october through to march, that would be our peaktime. during that time we get masses strandings without a doubt. but to have three consecutively across literally six days is definitely quite unusual. do we know why this happens? in terms of masses strandings they can typically be a difficult range of structures that made —— a different range of factors that might be at play. we might have asic animal that might ring in a pod, there might be seismic activity that could cause these animals to miss

navigate and strand. there are a range of influences that could be a play. in these instances it is quite perplexing because to have three within a week is quite unusual. looking globally, ru getting more mass strandings generally around the world orjust in this particular area? i think it is fair to say that it is very cyclical, without doubt we have oscillations as a result of el nino and learning patterns, and that can change, where water temperatures are affected that can change how close prey comes to shore and that can mean we end up with green mammals coming in to shore much closer than normal. there are fluctuations, it is fair to say natural that we certainly have seen some changes in our stranding record here in new zealand, but you also have to remember

that our observer effort has changed over recent years and we are becoming a lot more acute and observant in our reporting. there is definitely an increase in marine mammal strandings but there is also better observer strategies out there. that is affecting data. when you see pictures of mass strandings, a lot of people think, can't theyjust be pushed back into the ocean? what is being done to help these wales? there are some excellent stranding networks around the world, new zealand does well on that front, there are british marine life rescue and the cape cod stranding network in the us, they do excellent work in being able to assess animals and work out which ones are able to be successfully refloated. we do have an ongoing concern here in new zealand with some of the work we are doing at the moment about the need for appropriate welfare assessment of

individuals before they are refloated. again that is something the internationalfund a novel welfare in cape cod are very much leading on, they are doing excellent work in the way they assess animals prior to release. a li—year—old british girl has been praised for making a emergency call that saved her mother's life. kaitlyn wright who's from dorset in western england rang the emergency services when she was at home with her mother charlene, who was having multiple seizures. now kaitlyn has met the call handler who spoke to her on the phone and was commended for her calm and bravery. 0ur correspondent fiona lamdin was there. they've spoken on the phone before... hello, kaitlyn. and i said, "is she awake?" but this is the first time this unlikely team meet face—to—face. you live down a hill. she is a superstar.

i was the proudest mum in the world, that she'd done that for me. it just shows that she listens. she's brave and she's confident which is good. but i didn't think she'd do it. kaitlyn's mum has fibromyalgia and is in constant pain. she can have up to a0 seizures a week so they made sure their little girl knew what to do. we practised with her on a pretend phone, with kaitlyn. a dog and a kitten, 0k. when mummy was really poorly, what did you do?

can you show me? i called 999, green button. it's never too young to teach them. it's just showing them three little buttons and pressing the green one. make a game of it like we did. she saved charlene's life. if she hadn't have been there and done that, she might not be sat here today. and, yeah. the former first lady michelle 0bama's memoir becoming has become the best—selling book released this year in the usjust 15 days after publication. in it, mrs 0bama reveals the difficulties in her marriage and criticises president trump, writing that she can never forgive him for suggesting that her husband wasn't born in the us and so wasn't a legitimate american president. the new york political commentator anna therese day told me why america — and the world — had taken to michelle 0bama. michelle 0bama's story is one of the american

dream, one of the first things that she said when she entered that white house was "i wake up every morning in a house that was built by slaves". her story is one of surviving and thriving, despite being born in the south side of chicago she went on to princeton university and harvard law school, a prestigious law firm and then dedicated her life to public service, in addition to her husband's political work. so again it is the story that we tell our children here in this country of promise, she is the embodiment of that american dream. one of the famous things we can remember from michelle 0bama was saying "when they go low, we go higher". what impact are you think she has had on the political discourse, especially given it is so divided at the moment? i think americans are exhausted quite frankly,

particularly those who did not vote for president trump. it is also the holiday season here and thanksgiving, which we just had, is also a commercial holiday where you buy all your gifts for yourfamily, and michelle 0bama's story is about something that the majority of americans can relate to as a story about values, but also the intimate details that she provides really are experiences that many particularly wives and mothers can relate to, compromises you make to yourfamilies. certainly that aspect has been captured in american media, talk about how she's had assumed her own career for barack 0bama, but she has also been critical of the current us president, donald trump, what has been the reaction to that? what we cannot forget is that the 0bamas received unprecedented threats while they served in the white house, even president 0bama received over a dozen

assassination attempts, including on his family. so it was not just that they survived a lot of rhetoric, which is quite well—known that she did not give any oxygen to the negative and quite racist and sexist comments that were made to her, but the fact that they really did face a real threat unlike any other presidential family has ever faced. though she did criticise trump for that, it was based in the experience no other first family has lived through. she was talking about michelle 0bama's memoir that shows become a best seller just 15 days after publication. hundreds of rare and personal objects belonging to the legendary singer and actor frank sinatra and his wife barbara have gone on show in new york before heading to auction next week. among the items that will be up for grabs is a portrait of so—called

0l‘ blue eyes, painted by the author and artist norman rockwell. 0ther itmes up for grabs include works by pablo picasso and a number of paintings by sinatra himself, as well as personal scripts from some of his classic movies. the auction will be held on 6 december. since the festive season are all around the world with some of the world's oldest christmas scenes have been honoured in that special human lives. poland's colourful and integrity seen groups have been elevated to a list of international treasurers by unesco. the cribs were reduced in the southern city of kra kow to reduced in the southern city of krakow to generations and competitions have been held since 1937. looking ahead to the all—important

weekend weather prospects and it is going to be one of those weekends where there will be quite a bit of rain around, we will all see some wet weather at some point but choose your moments, there will be some dry spots as well. often the weather will stay pretty cloudy. 0n the satellite, racing towards our shores is another area of low pressure which will be bringing the wet weather and indeed we have already seen over the past few hours the rain arriving across wales and the west of england, which will continue pushing eastwards over the next few hours with showers continuing in the north and west of scotland. if you are planning to head outside of the next few hours it will be quite chilly where the winds fall light, so there will be a few patches of frost in the countryside, some of the deeper valleys. for saturday morning we are looking at a cloudy and wet one across southern counties of england but the rain will be quite heavy

first thing in the morning as well. as we travel northwards the rain gets lighter across wales and the midlands, perhaps a dry start for north—east england but the cloud quickly spreading and rain for northern ireland. bright skies but a chilly start of the day in scotland, showers continuing to affect northern and western areas. through the rest of saturday our first band of rain will continue to push its way eastwards, rain will be quite heavy for a time. even as it clears there will be quite a bit of cloud, the sky only slowly brightening with a bit of sunshine coming through later. the best of the weather for north—east scotland, that is where we will see the driest conditions, northern ireland not having a bad afternoon. mild in the south. saturday night sees another pulse of rain moving in, northern ireland, wales, west of england, that will push into east anglia and south—east england overnight, that looks to be quite heavy, this band of rain is pushing further northwards, getting into scotland. the far north—east may hang onto some cold air to start the day on sunday. sunday, quite a complicated weather picture with a couple of centres of low pressure around about the uk

and lots of weather fronts too. these weather fronts will continue to bring outbreaks of rain, possibly the wettest weather across northern england and scotland, the early—morning rain clearing away from east anglia and south—east england, but showers will move in from the west, perhaps some lengthy spells of rain for northern ireland, wales and western areas of england. mild, 15 for south—east england, cloudy skies across scotland, temperatures close to average for this time of year. into the forecast next week it is staying pretty unsettled, the weather is a chance of getting cooler and colder in scotland. this is bbc news. the headlines: china, india, russia, brazil and south africa have warned against protectionism at the 620 summit in buenos aires. 0n the first of its two days, the summit has also been marked by disagreements over climate change, and there have been fears the leaders may not be able to agree on a final communique. a magnitude—7 earthquake has struck the alaskan city of anchorage. several large aftershocks prompted a tsunami warning to be issued, but that has now been lifted. reports from the area

suggest the quake damaged buildings and roads. it is not yet clear if there are any casualities. britain and three american states have launched investigations into the hacking of marriott international, one of the world's largest hotel chains. the company said the hackers stole information about 500 million customers. names, mailing address, phone and passport numbers and some credit card details were compromised. new figures obtained by the bbc reveal that almost one in four houses reserved for military families is standing empty.