welcome to bbc news. i'm lewis vaughan jones. our top stories: us intelligence officials say saudi arabia's crown prince personally approved an operation that killed the journalist jamal khashoggi. another abduction of schoolchildren in nigeria. more than 300 girls have been taken. president biden visits texas to see how it's recovering from freezing weather that left millions without power or clean water. more good news on the effectiveness of covid vaccines — a british study shows even a single dose of the pfizerjab helps stop the virus spreading. it is the first time i have been on an open air bus. really?—

been on an open air bus. reall ? �* , ., ., really? i've never been allowed to. and prince harry gets on a tourist bus in california to talk about his new life in the us and why he left the uk. it was destroying my mental health. i was like this is toxic. . health. i was like this is toxic.- so - health. i was like this is toxic.- so i - health. i was like this is toxic.- so i did - health. i was like this is i toxic.- so i did what health. i was like this is - toxic.- so i did what any toxic. yeah. so i did what any husband and _ toxic. yeah. so i did what any husband and any _ toxic. yeah. so i did what any husband and any father - toxic. yeah. so i did what anyi husband and any father would do. it's like, i need to get my family out of here. welcome to our viewers on pbs in america and around the globe. we start with that us intelligence report on the killing ofjamal khashoggi. it accuses saudi arabia's crown prince mohammed bin salman of personally approving the operation which led to the murder of the journalist in 2018. it's the first time the us has officially and openly accused the crown prince, who is a key american ally in the middle east. saudi arabia has dismissed the american claims as false and unacceptable. here's nick bryant.

it was at the saudi consulate in istanbul that jamal khashoggi met his brutal end. he had been lured there to discuss paperwork for his upcoming wedding but he was strangled as soon as he entered the building by a team of saudi assassins, who then dismembered his body. a saudi dissident who wrote a column for the washington post, often criticising his country's authoritarian leadership — the motive was to silence him. the damning conclusion of the declassified intelligence report is that saudi arabia's crown prince mohammed bin salman, the country's de facto leader, approved an operation in istanbul to capture or kill the saudi journalist. the assessment was based on the crown prince's control of decision—making in the kingdom, the direct involvement of a key adviser and members of his protective detail in the operation. these aren't new findings. the trump administration had suppressed this report. ahead of its release, presidentjoe biden spoke by phone to king salman of saudi arabia, the crown

prince's father — all part of a deliberate move by the new administration to alter the relationship with the saudis, to be tougher on this oil—rich kingdom. we have significant ongoing interest. we remain committed to the defence of the kingdom. but we also want to make sure — and this is what the president has said from the outset — that the relationship better reflects our interest and our values. and so what we have done by the actions that we have taken is really not to rupture the relationship but to recalibrate it. already, mr biden has ordered an end to arms sales and other us support to the saudis in their war in yemen. as a candidate, he referred to saudi arabia as a "pariah state" but he's stopped short of imposing sanctions on mohammed bin salman, the future king, who is known as mbs. this new, tougher approach has drawn support from both democrats and leading

republicans. look, this is a journalist working on american soil, working for an american publication, and he was murdered and dismembered. this is something we can'tjust look beyond. there has to be a consequence of that. donald trump was very much in step with the saudis. significantly, it was the first foreign country he visited as president. and as well as turning a blind eye to the country's human rights record, he had a warm relationship with mohammed bin salman. when they met at a 620 summit injapan, he was asked about the murder of the saudi journalist, but clearly did not want it to sour their personal rapport. mr president, have you addressed the murder er... thank you very much, i appreciate it. under donald trump, the saudis almost had a blank cheque. those days are over. nick bryant, bbc news, new york. we can now speak to abdullah alaoudh, research director

for saudi arabia at the non—profit organisation dawn, democracy for the arab world now. he's live in washington. thank you very much for coming on the programme.— thank you very much for coming on the programme. thank you for havin: on the programme. thank you for having me- _ on the programme. thank you for having me. this _ on the programme. thank you for having me. this report _ on the programme. thank you for having me. this report is - on the programme. thank you for having me. this report is out - having me. this report is out and some — having me. this report is out and some people _ having me. this report is out and some people are - having me. this report is out and some people are saying | and some people are saying there is not a great deal you inhibit the fact it is out, it is public now, what is your reaction to it?— reaction to it? first of all, we were _ reaction to it? first of all, we were glad _ reaction to it? first of all, we were glad that - reaction to it? first of all, we were glad that it - reaction to it? first of all, we were glad that it came j reaction to it? first of all, - we were glad that it came out finally and the administration finally and the administration finally followed the law that was enacted by the congress after the killing of khashoggi and we think it's a huge step but also a first step.- but also a first step. 0k, a first step. _ but also a first step. 0k, a first step, then. _ but also a first step. 0k, a first step, then. would - but also a first step. 0k, a | first step, then. would you like to see the crowd —— crown prince be held accountable in some way?— prince be held accountable in somewa ? ~ , ., ., some way? absolutely, and that his when we _ some way? absolutely, and that his when we get _ some way? absolutely, and that his when we get disappointed i some way? absolutely, and that his when we get disappointed at| his when we get disappointed at the administration today. while we were glad that the report pointed the finger, points the

finger to mbs, implicates him in the murder in a very transparent way, we think that not sanctioning him and falling short of that move is unfortunate.- short of that move is unfortunate. , ., ., ., unfortunate. so you would want sanctions? _ unfortunate. so you would want sanctions? what _ unfortunate. so you would want sanctions? what would - unfortunate. so you would want sanctions? what would that - sanctions? what would that mean? ~ , ~ mean? well, is like freezing assets, banning _ mean? well, is like freezing assets, banning him - mean? well, is like freezing assets, banning him from i mean? well, is like freezing - assets, banning him from travel and coming into the us or any other western country, and putting him actually, allowing for legal actions against him and we already started this, so it means, part of this is to not give him immunity is the head of a state. i not give him immunity is the head of a state.— not give him immunity is the head of a state. i see, but the fli side head of a state. i see, but the flip side of— head of a state. i see, but the flip side of that _ head of a state. i see, but the flip side of that of _ head of a state. i see, but the flip side of that of course - head of a state. i see, but the flip side of that of course is i flip side of that of course is that the us has to have very important strategic relations with this very important country. with this very important country-— country. yeah, but the - relationship should actually be established with the saudi

institutions, with the saudi public, with the saudi long—term kind of relationship that actually should go beyond mbs and should not, i mean, we should not put all the eggs in the basket of mbs. mbs isjust a guy. he does not represent saudi arabia or the saudi public and does not represent saudi interest. it is not in the saudi best interest to go to war in yemen or to blockade qatar or to put the prime minister of lebanon under house arrest or to cut relationships with either a tweet or imprisoned prominent human rights defenders or infant murderjamal khashoggi. —— in fact. murderjamal khashoggi. -- in fact. ., . ., , murderjamal khashoggi. -- in fact. . .,, , fact. no sanctions, you listed what you _ fact. no sanctions, you listed what you would _ fact. no sanctions, you listed what you would like - fact. no sanctions, you listed what you would like to - fact. no sanctions, you listed what you would like to see i fact. no sanctions, you listed i what you would like to see just in a couple of words how confident are you do you think you will see any of that? i

think from how the biden administration actually treated the saudi government, i'm very hopeful that this will happen at one point in the near future, i guess. at one point in the near future, iguess. because at one point in the near future, i guess. because they already downgraded him from ruler and crown prince to defence minister and this is really a good deal and a big deal, it is a big deal, because the administration used to protect him, the trump administration, and this is not the trump administration anymore. the trump administration anymore-— the trump administration an more. ~ , ., ~ w, anymore. abdullah alaoudh, we must leave _ anymore. abdullah alaoudh, we must leave it _ anymore. abdullah alaoudh, we must leave it there _ anymore. abdullah alaoudh, we must leave it there but - anymore. abdullah alaoudh, we must leave it there but great i must leave it there but great to have you on. thank you. thank you so much. to nigeria now, and another abduction of hundreds of schoolchildren. president muhammadu buhari says the government will not succumb to blackmail by criminals who target innocent children following the abduction this time of 317 schoolgirls from a boarding school. the kidnapping occurred in the north—west state of zamfara. the governor has ordered all schools to close in response. mayenijones reports.

the lucky few. these students were amongst those who are not kidnapped on friday morning. over 100 gunmen stormed this all—girls secondary school in the town ofjangebe, taking 317 students with them. security forces have been deployed to the area. we are on the trail of the kidnappers — that's why you find us on the fringes of the forest here as part of our locational efforts, and as part of our cordoning efforts. anxious parents gathered outside the school all day, waiting for news of their loved ones. abductions of this type have become increasingly common in northern nigeria. just last week, 42 people, including 27 students, were kidnapped in the central state of niger. they are yet to be released. in december, more than 300 boys were kidnapped by gunmen and later released after negotiations. it's not clear who carried

out that attack. but it was a 2014 kidnapping of 276 girls in the town of chibok by islamist militants that brought global attention to mounting insecurity in the country. that kidnapping was carried out by the extremist group boko haram. although they have not been active in north—western nigeria, there is evidence their area of activity could be expanding. we know that one of the major institutions objected by boko haram, that has been operating in nigeria for over ten years, is secular education, and we know that boko haram has been importing the criminal guns in the north—west and they have succeeded in the past 18 months or so, so i would not be surprised if these people are doing it for some ideological reasons or at least this indicates to us the pathological hatred they have for school, possibly because they did not have the opportunity of attending any.

criminals have been encouraged by the publicity that followed the abduction of the chibok girls. they know it is an effective way of pressuring the government. and with no clear strategy to stop them, northern nigeria remains one of the most unsafe places in the world for children. mayenijones, bbc news, lagos. let's get some of the day's other news. a review by the united nations of global plans to cut carbon emissions suggests they won't be enough to avoid dangerous levels of climate change. the un says countries need to be more ambitious if they want to cut greenhouse gas emissions by half before 2030. more than 400 people have escaped from a jail in haiti during a riot that left 25 people dead. the escape took place from the prison in the suburbs of capital port—au—prince on thursday after mass violence. authorities said the prison's director died during the riot, along with innocent bystanders.

a un special envoy has insisted that all efforts must be made to restore democracy in myanmar, and that no country should recognise or legitimize the military government that seized power. as protests continue, the military government has officially annulled the results of last november's general election, which saw a landslide victory for aung san suu kyi's party. to the us, and the latest on that extreme winter storm in texas. us presidentjoe biden visited the state to see how it's recovering from the freezing weather that left millions without power or clean water. the president and first lady went to a food bank in houston, where they helped put together supplies for distribution. they also met staff at a coronavirus vaccination centre and had this message for texans. jill and i wanted to visit texas today for a couple of reasons. first and foremost, to let the people of texas know our prayers are with you in the aftermath

of this winter storm. and secondly, to let you know what i told governor abbott and mayor turner and judge hidalgo and the congressional delegation, that we will be true partners to help you recover and rebuild from the storms and this pandemic and the economic crisis we are in. we are in for the long haul. reggie young works at the houston food bank that the president and the first lady toured. he told me what mr biden said to him. so we showed him everything. we showed him ourfleet, we showed him our trucks, we showed him our warehouse. we also introduced him to some of the clients of the families that have been impacted by the freeze. so he got a chance to hear their stories first—hand, as well as meet the volunteers that have been helping us to respond. and what was his thoughts — what did he say to you? yes, so he was very concerned about what was going on. we talked a lot about

the amount of people that who were impacted by this and their struggle and how we were responding to it. he really said that he supported our work and said that our operation was amazing, but he was really touched by the families that were there and the work that they were doing to bounce back, based on all the things that happened to them. and what are some of the stress points right now — what are some of the things that people need? yes, so absolutely the number, one thing people absolutely need is water. even though water is back and running in most of our region, the challenges that a lot of people have is broken pipes and they can't run water, they can't cook their food with this water. they can't do a lot of things. they can't bathe. someone of the main things we're trying to do is really source a lot more water into the region so we can get it to in need. 0ur our thanks to reggie young. stay with us on bbc news. still to come: prince harry on american tv to talk about work, family, and leaving

the royal life behind. prince charles has chosen his bride. the prince proposed to lady diana spencer three weeks ago. she accepted, she says, without hesitation. as revolutions go, this had its fair share of bullets. a climax in the night outside the gates of mr marcos' sanctuary, malaca nang — the name itself symbolising one of the cruellest regimes of modern asia. the world's first clone has been produced of an adult mammal. scientists in scotland have produced a sheep called dolly using a cell from another sheep. warren beatty and faye dunaway announced to the world - that the winner of best film was la la land. i the only trouble was it wasn't. the mistake was only put right in the middle of gushing - speeches by the team - behind the modern musical. not for 20 years have locusts been seen in such numbers in this part of africa. some of the swarms have been ten miles long.

this is the last time the public will see this pope. very soon, for the sake of the credibility and authority of the next pope, benedict xvi will, in his own words, be hidden from the world for the rest of his life. this is bbc news, the latest headlines: a declassified us intelligence report says that the saudi crown prince approved and likely ordered the murder of the journalist jamal khashoggi. the crown prince denies the accusation. there is further evidence that vaccines will protect against the spread of coronavirus and of people getting ill. a study of healthcare workers in cambridge here in the uk, found a single dose of the pfizer vaccine dramatically cuts the risk of getting the virus without symptoms. our medical editor fergus walsh reports. like thousands of healthcare

workers in cambridge, daniela does a weekly swab test for coronavirus before she goes to work at addenbrooke's hospital. we could show whether she could be carrying the virus about displaying symptoms. that swab is analysed at these university labs where they compare the results from staff like daniela who'd received the pfizer vaccine with those yet to be immunised. in early data they found that two weeks after the first dose, the risk of asymptomatic infection carrying the virus without knowing it was reduced by 75% stop and england wired study of health workers found a similar protective effect.- workers found a similar protective effect. this is a genuine — protective effect. this is a genuine good _ protective effect. this is a genuine good news - protective effect. this is a genuine good news story. | protective effect. this is a - genuine good news story. people should be really pleased that the vaccine will protect them and they should have the vaccine in order to prevent themselves and others from getting in fact did. but i think it will help us get out of lockdown, help other countries get out of lockdown and it will allow us to eventually get back to normal.

hi, laura. cani eventually get back to normal. hi, laura. can i check your blood _ hi, laura. can i check your blood pressure?— hi, laura. can i check your blood pressure? daniela is a nursin: blood pressure? daniela is a nursing apprentice _ blood pressure? daniela is a nursing apprentice at - nursing apprentice at addenbrooke's. nearly nine in 10 staff here have had their first dose of vaccine — important, as it reduces the chance of getting infected and may protect patients. it makes me feel very happy knowing that i will not pass the virus to anyone around me. it is very reassuring, _ anyone around me. it is very reassuring, very reassuring. it reassuring, very reassuring. [it was reassuring, very reassuring. was one of reassuring, very reassuring. it was one of the big unknowns, can vaccines help slow transmission of coronavirus? the study here adds to growing evidence that they do. that has huge implications. it suggests vaccination benefits notjust the individual but the wider community. it's vital people have both doses of vaccine. but while highly effective, they don't offer 100% protection from catching coronavirus or passing it on. so while

infection rates remain high, social distancing will continue to be important. fergus walsh, bbc news. this week, 10 years ago, libya was in chaos. the arab uprisings of 2011 had spread there, and colonel muammar al—gaddafi and his men were fighting back. gaddafi was eventually overthrown. they've had 10 years of war, the rule of militias, and since 2014, two rival governments. the internationally recognised one in tripoli is backed by turkey. but its rival in benghazi, has the support of russia, the uae and egypt. a peace process sponsored by the un is trying to unify the country with a transitional government ahead of elections. here's our middle east editor, jeremy bowen. this is sirte, the place where colonel muammar gaddafi was born and where he was killed savagely, during the battle for the town

after his regime collapsed. the uprising against him spread fast, inspired by revolution in tunisia and egypt. 0ne personjust said to me, "this is a revolution of honour, it's a revolution of sanity." in his last major interview, gaddafi showed no sign he sensed disaster ahead. no demonstration at all in the streets. gaddafi's translator: d c you see demonstrations? yes, i have, yes. where? i saw some today, in zawilah. are they supporting us? no, they're not supporting you. they're not against us. some were against you and some were for you. no, no one is against us. against me for what? because i am not president. they love me, or my people with me, they love me, all. nato air strikes against the regime gave rebels the edge. they need to stop this madness, jeremy, and you need to convey this truth.

the world needs to test us, test our promises, when we say we want peace. that was moussa ibrahim, gaddafi's spokesman ten years ago after civilians were killed in a nato air strike in tripoli. now in europe, he insists libya is the victim of a western conspiracy. if you come to a society, bombard it with rockets, bombs, kill many, many children, many civilians, support al-qaeda and isis and give money and weapons to violent individuals, and support them politically in the international arena and give them the loudest voices on the international media... sorry to interrupt, but they would deny all of that. they would say that is just a daft conspiracy theory. we were right in describing what was happening in libya and, jeremy, you were there.

everything i said to you will happen in libya has indeed happened in the last ten years. for a while there was hope. cheering crowds in benghazi greeted david cameron and president nicolas sarkozy of france who had led nato's response. it's great to be here in free benghazi and a free libya. but libyans are not free. explosions and gunfire corrupt, lawless militias, and for the last six years two rival governments have fought to fill the vacuum gaddafi left when he crushed any political activity that didn't pay him homage. a lot of people said afterwards, well, hang on, we should have done more, whatever that means. cameron and sarkozy went to benghazi, they declared victory and went home. yes, they did, they did. i mean, i think cameron wanted to do more. we didn't have the capacity to do it.

would it have made any difference? unless you have people on the ground, and the qataris did, the emeratis did, the turks did. we didn't. and in any case, we didn't know the terrain properly, but others did, and exploited it. in any case, we didn't know enough about libya. any more than we knew enough about iraq when we went in there in 2003. thousands have been killed in libya since 2011. no one knows for certain how many. in tarhuna, they are exhuming, identifying and re—burying people murdered by a notorious militia led by five brothers. some of the dead were brought to tripoli 60 kilometres away for a mass funeral. perhaps un diplomacy can reunite the country or perhaps libya can't yet escape the power of the gun and the legacy of a dictator. jeremy bowen, bbc news.

britain's prince harry says he felt forced to step back from his duties with the royal family because press coverage was damaging his mental health. he's been speaking with the chat show host james corden, on a us television show — and our royal correspondent daniela relph was watching. here we are. yeah. it's the first time i've been on an open top bus. is it really?! yeah. no! not realy allowed to. in the la sunshine, from the top deck of a tourist bus, prince harry opened up to his friend james corden about leaving the uk and, ultimately, royal duty. it was never walking away, it was... it was stepping back rather than stepping down. right. you know, it was a really difficult environment, as i think a lot of people saw. we all know what the british press can be like and it was destroying my mental health. really? i was like, this is toxic. yeah. so, i did what any husband and what any father would do, i was like, i need to get my family out of here.

there were lighter moments too, including a call to his wife. haz, how's your tour of la going? - haz? i didn't know we were calling you �*haz�* now! no, you're not my wife, so...! james corden offered a sympathetic ear and harry was clearly at ease. he revealed that he had watched the tv series the crown, his son archie's first word was �*crocodile' and there'd been a special gift from the queen. interestingly, my grandmother asked us what archie wanted for christmas and meg said a waffle maker. sorry, you're glossing over the fact that i cannot for the life of me imagine the queen ordering a waffle maker! for two brits living in california there were some memories of home. there you go, a little slice of home, huh?! next weekend, it will be meghan's turn, with the broadcast of her interview with oprah winfrey. daniela relph, bbc news. that is it from me. you can reach me on twitter —

i'm @lvaughanjones. iamat i am at lewis vaughan—jones and this is bbc news. goodbye. hello, i haven't got the best weather memory but i would hazard a guess that this is going to be one of the quieter weather weekends of the year so far. that's no bad thing. barely any rain out there, some occasional sunshine, fairly chilly at night. frost, fog a possibility, but it is all very quiet with high pressure right across us, just one weak weather front moving into that area of high pressure and that just lingers with a bit of cloud as we go through the weekend, barely any rain left with it by saturday morning but the cloud will have kept temperatures up overnight and into the morning through parts of scotland and northern ireland. it's eastern scotland, more especially in england and wales with the frost, maybe down to —4 or —5 in the coldest parts of southern england in the countryside, a few fog patches, parts of wales, west midlands and south—west

england could be gradually clearing. and still maybe a bit of light rain to parts of northern ireland and southern scotland but that will tend to fizzle out and bring just a bit more cloud further south into parts of northern england during the day. elsewhere, well, there will be some areas of cloud around but there will be sunny spells, too and temperatures to several degrees above the average for the end of february. still that strip of thicker cloud across parts of northern england and northern ireland, the odd spot of drizzle perhaps overnight and into sunday. away from that will be some areas of cloud, some clear spells, a few fog patches around, but not widely as clear as friday night and into saturday morning, so that means the frost isn't going to be as widespread. so just pockets of frost on sunday morning, some fog patches gradually clearing. still from that decaying weather front, a strip of thicker cloud from northern england into northern ireland, there could be a stray shower though the vast majority will have a drier day again with some cloud but also some sunny spells. and for the most part winds are light, quite breezy in north—west scotland and windier towards the south coast of england into south—west england and south wales on sunday where it's likely to feel a little bit cooler and generally temperatures are just a degree or two down on sunday.

now, there is a greater chance of more widespread mist and fog as monday begins and it will make for a colder day especially on monday where that fails to clear. but high pressure's still around for much if not all of next week. just a little weather disturbance running up across western parts on tuesday may bring a few showers, but that'll be the extent of it. and after briefly colder at the start of the week, temperatures head up again before it turns a bit colder again later in the week.

this is bbc news, the headlines: a us intelligence report says the saudi crown prince approved a plan to capture or kill the dissident journalistjamal khashoggi, in 2018. the report said the conclusion was based on the crown prince's willingness to use violence to silence critics. saudi arabia has dismissed the american claims. the nigerian president says his government won't give in to blackmail after more than 300 schoolgirls were kidnapped. he described those behind the latest abductions, in zamfara state, as bandits and said they should not interpret the government's restraint as a sign of weakness. the us president, joe biden, has traveled to texas to see how the state is recovering from the freezing weather that left millions without power or clean water.

now on bbc news, the week in parliament.