welcome to bbc news — i'm lisa—marie misztak. our top stories: summit in a war zone — president biden makes a surprise visit to ukraine — and reaffirms america's support. kyiv stands, and ukraine stands. democracy stands. the americans stand with you. two weeks after being struck by catastrophic earthquakes, turkey is hit by a further deadly tremor. as the body of nicola bulley is finally identified, herfamily criticise sections of the uk media. and the medical breakthrough

that could help stroke victims regain control of parts of their body. hello and welcome to our viewers on pbs in america and around the globe. president biden has arrived in poland after an extraordinary visit, to an active war zone on monday. joe biden�*s unannounced and surprise trip to kyiv was short on time, but long on symbolism, ahead of the first anniversary of the russian invasion of ukraine. he said america would stand with ukraine for as long as it takes and pledged another $500 million of military aid. speaking while air raid sirens were going off, president biden added that vladimir putin's war of conquest was failing. our international editorjeremy bowen has this report. (air-raid siren wails) the air—raid alarm, as the two presidents arrived at st michael's church,

where ukraine commemorates its war dead, felt too well timed to be a coincidence. with unprecedented security in kyiv, the americans had warned the kremlin that joe biden was coming. he had just arrived from a long trainjourney and a point was being made. ukraine was still under attack, its most powerful ally was there, in an active war zone, to show its leader support. president biden told the people running ukraine's war that this is where he wanted to be in the days leading up to the first anniversary of russia's attempt to extinguish ukraine's independence. president zelensky knows ukraine's future depends on america and joe biden. translation: we can and must make this year, 2023, _

the year of victory, and i want to emphasise that this unprovoked and criminal russian war against ukraine, the whole of europe and the democratic world, must end with a clearing of all ukrainian land from russian occupation, and firm guarantees of long—term security for both our country and the whole of europe, and the whole world. putin's war of conquest is failing. russia's military has lost half its territory it once occupied. young, talented russians are fleeing by the tens of thousands, not wanting to come back to russia. he thought he could outlast us. i don't think he is thinking that right now. strong support, but the ukrainians want more than words. they want war—winning weapons. the hard reality of russian aggression has forced nato leaders, and especially president biden, into a series of difficult decisions. the biggest so far may be looming.

ukraine doesn't just want weapons that will allow it to survive, it wants to win the war, and up to now, that is a level of help that president biden has not been prepared to grant. the ukrainians are pressing for a decisive upgrade as soon as possible. time might not be theirfriend. the cost that ukraine has had to bear has been extraordinarily high, and the sacrifices have been far too great. they have been met, but they've been far too great. ukraine doesn't release casualty figures. not as high as russia's... ..but still in the tens of thousands. the russians are bleeding another generation of ukrainian fighters.

that is a big reason why president zelenskyy wants urgently to convincejoe biden to help ukraine win, notjust hold steady in a long war of attrition. the wall commemorates the dead of the earlierfighting with russia, that started in 2014. each flag represents a life lost in the last 12 months. the kremlin believes it will win a trial of endurance. ukraine doesn't want to wait to find out. jeremy bowen, bbc news, kyiv. well for more insight on this, let's now speak tojeffrey stacey, a us national security advisor, and also a former state department official in the obama administration. the conference that took place on monday in kyiv with resident zelenskyy and president biden, president zelenskyy said biden�*s visit would bring ukraine closer to victory. just how significant do you think resident biden�*s visit was?

extraordinarily significant, for multiple reasons. first of all it was a surprise to everyone. i mean, the entire world, with a few exceptions of ukrainian and american officials. numbertwo, this ukrainian and american officials. number two, this was done with immense danger afoot. no us troops on the ground, that has never happened with the us president before but the strategic value is wobbly second to symbolic that value for ukrainians, from the president all the way down to average ukrainians, across the country and many abroad, that this is probably the second finest hour. the finest hour would be at the end of the war on this very much is the beginning of that end. president biden will deliver a speech in poland in a few hours�* time and in russia, vladimir putin will give the state of the nation address.

will we get different rationales on whether is going? entirely. president putin will not be truthful with his people by president biden will stand next to allies. poland is one of the strongest of course on the west is united, nato, the european union, other allies, standing against even china with this because a victory for ukraine means the odds of china taking taiwan are immensely diminished so there are all kind of steaks attached to this. i was very important is that russia has already launched its major awaited defensive and it�*s amounting to almost nothing. when ukraine amounts it�*s offensive in a couple a months�* time, we are likely to see two armoured tank and vehicle fighting divisions. remember, the bradley fighting vehicles are coming even before the tanks. we have the tanks

from the uk, all of europe and germany and everyone with their leopard tanks, even far sooner than the american ai abrams tanks, they will be able to form a third division when those tanks arrive at the attack either ukrainians will occur much sooner than those arrived and the likelihood of success compared to the lack of success compared to the lack of success for —— for this new russian offensive in the anniversary of this war, we will expect an entirely different and probably take ukrainians all the way to the edge of crimea. it ukrainians all the way to the edge of crimea.— edge of crimea. it could be seen that _ edge of crimea. it could be seen that biden's - edge of crimea. it could be seen that biden's visit - edge of crimea. it could be seen that biden's visit is i edge of crimea. it could be seen that biden's visit is a | seen that biden�*s visit is a step before authorisation of fighterjets. do you think that is a possibility?— is a possibility? absolutely. b the is a possibility? absolutely. by the time _ is a possibility? absolutely. by the time ukrainians - is a possibility? absolutely. i by the time ukrainians engage in their attack, we will see poland provide fourth—generation fighters and

several allies, fourth—generation fighters and severalallies, maybe fourth—generation fighters and several allies, maybe not the us, but we will see various big congressional pressure for f-i6s congressional pressure for f—i6s to be also given to the ukrainians and by the time they engage in this, they will have helicopters as well and that will give them the air support in the deep fire capacity, the command post and what have you, for decisive rake through of the stalemate lines and that is why i agree with retired general hodges, admiral stavridis, and general petraeus, that russia is in the early stages of losing this war. this will indeed be marked by historians as the beginning of the end of the war in ukraine. of the end of the war in ukraine-— of the end of the war in ukraine. ., ~ i. , . ukraine. thank you very much for our ukraine. thank you very much for your insight. _ two weeks after earthquakes flattened much of the region, and killed more than 16,000 people, southern turkey has been hit by another earthquake. the country�*s disaster and emergency agency said a 6.3 magnitude tremor struck close to the city of antakya, at 8 o�*clock in the evening, localtime. it was followed by

three aftershocks, the strongest of which was a 5.8 near the town of samandag. two powerful earthquakes struck the same area on 6 february, causing widespread devastation. our correspondent anna foster is in the southern turkish city of adana, and she sent this report. this is felt notjust this is felt not just across southern turkey, it was felt down into lebanon as well and across into syria. it is something that the people �*s reaction to is really quite visceral now, after these first two earthquakes a fortnight ago, when the ground starts to shake and it does significantly, you can really feel the earthmoving, people get up and they move outside. i was in a relatively modern hotel lobby, we watched the chandeliers swinging but you see that sense of fear in people�*s faces. a sort happened

two weeks ago and they move immediately outside very quickly. there is a will nervousness and you could tell by the way the ground is shaking, we really altered strongly here so we knew it was going to be a significant magnitude and everybody is straight on to their phones, their mobile phones, trying to find out what happened, where the epicentre is, how strong the epicentre is, how strong the quake was, checking in on family and friends. i was on so many personal what subgroups with people in the middle east, asking how everybody was, checking everybody was safe and now it is a question of trying to work out what damage this latest quake may have caused. brazil�*s president — inacio lula da silva — has travelled to the state of sao paulo — to visit areas affected by flooding and landslides that have left dozens dead. search and rescue efforts are continuing with people still thought to be trapped in the rubble of collapsed buildings. the bbc�*s tim allman reports. seeing for himself the terrible damage nature can cause.

president lula da.silva aboard a military helicopter to above some of the towns and villages almost swept away by the mudslides but even in the darkest of moments, he believes there is hope. darkest of moments, he believes there is hepe-_ darkest of moments, he believes there is horse-— there is hope. translation: if each one of— there is hope. translation: if each one of us _ there is hope. translation: if each one of us works _ there is hope. translation: if each one of us works alone, - there is hope. translation: if each one of us works alone, we| each one of us works alone, we do less work, that�*s why we need to stick together, that�*s why we need to share the good things in bad things because together we will be much stronger and we will recover quickly. stronger and we will recover cuickl . ~ , ., , stronger and we will recover cuickl.~ , ., quickly. when you see some of the damage. — quickly. when you see some of the damage, you _ quickly. when you see some of the damage, you will _ quickly. when you see some of the damage, you will have - quickly. when you see some of| the damage, you will have your doubts. the hillsides around here are scarred. many of the homes, buried. some begin the desperate task of trying to clean up. others don�*t have that luxury, the property destroyed, their lives now on hold. ~ ,, �* destroyed, their lives now on hold. ~ ,, ~ destroyed, their lives now on hold. �* ~ hold. translation: it was like a horror movie. _ hold. translation: it was like a horror movie. we _ hold. translation: it was like a horror movie. we saw - hold. translation: it was like a horror movie. we saw our - a horror movie. we saw our house swept away and my nephew�*s house. i�*m sure they were sleeping, all three of them, and up to now we have no

news. fist them, and up to now we have no news. �* , them, and up to now we have no news. ~ , ., , them, and up to now we have no news. ~ ,., ., news. at this airbase, some of those rescued _ news. at this airbase, some of those rescued from _ news. at this airbase, some of those rescued from the - news. at this airbase, some of i those rescued from the mudslide abroad safety this is all also become a destination for those who did not survive. there are hopes that people buried under the mark in the rubble may still be rescued but more rain is expected in the coming days. this is a crisis that is seemingly far from over. stay with us on bbc news. still to come, pedal power: the disabled man who spent 10 years developing the perfect bike. 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's sanctuary, malacanang, 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 i

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. 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, ifor the sake of the credibility. and authority of the next pope, benedict xvi will, in his own words, j be hidden from the world for the rest of his life. i this is bbc news. the latest headlines: summit in a war zone. president biden makes a surprise visit to ukraine and reaffirms america�*s support. two weeks after being struck by catastrophic earthquakes, turkey is hit by a further deadly tremor.

police in the uk have confirmed that the body discovered in the river wyre in lancashire yesterday is that of nicola bulley. the 45—year—old mother of two went missing more than three weeks ago. her family released a statement, saying their worst fears had been confirmed, and went on to criticise some sections of the media for ignoring their appeal for privacy. judith moritz reports. the lancashire landscape held on to its secret for more than three weeks. the river wyre, snaking its way through the fields here, had the answer all along. what happened to nicola bulley? now, we know. sadly, we are now able to confirm that yesterday we recovered nicola bulley from the river wyre. nicola�*s family have been informed, and are, of course, devastated. nicola's family have asked that we release the following statement on their behalf as follows. "our family liaison officers have had to confirm our

worst fears today. we will never be able to comprehend what nikki had gone through in her last moments, and that will never leave us. nikki, you are no longer a missing person. you have been found. we can let you rest now. we love you, always have and always will. we will take it from here." as nicola went missing whilst walking her dog next to the river, the wyre was searched extensively, but she lay unseen for 2h days. yesterday, her body was found by members of the public about a mile downstream. lancashire police said all along they believed nicola had fallen into the water, but the force has been criticised for its response, and especially for its decision to release personal details about the mother—of—two.

when the cameras have left this village, and the posters and ribbons have been taken down, the police and the media will have some soul searching to do, including whether the relationship between them had any influence on the way the case itself was handled. nicola�*s disappearance has had mass coverage. the media converged on her small village, and her family directly criticised some organisations. "we tried last night to take in what we had been told "in the day, only to have sky news and itv making contact "with us directly, when we expressly asked for privacy. "it is shameful they have acted in this way. "our girls will get the support they need from the people "who love them the most. "it saddens us to think that, one day, we will have "to explain to them

that the press and members "of the public accused their dad of wrongdoing, "misquoted and vilified friends and family." as a retired lancashire detective, bob eastwood has watched the case and its coverage with interest. can you separate out the way the communications were dealt with and the investigation? well, i think there became a big beast that was - hungry for information. people were going out. for their own information. people were making things up, experts were adding to it, - and quite clearly, in my view, they were making it up basedj on no evidence whatsoever. the yellow ribbons still fluttering were supposed to signify hope. tonight, that has run out. now, nicola bulley�*s family know she�*s not coming back. the mystery of her disappearance ending with the saddest of answers. judith moritz, bbc news, lancashire. scientists in the us say they�*ve used new technology to restore movement in the arms and hands of two people

who�*d suffered strokes. the team in pittsburgh were able to stimulate the spinal cord by implanting electrodes in the neck. more research is still needed to develop the technology, but those who led the study say the technique could have a huge impact on people�*s lives. let�*s now speak to dr marco capogrosso, one of the main researchers. he is also an assistant professor of neurological surgery at the university of pittsburgh. dr marco capogrosso, thank you forjoining us. you are part of the study. forjoining us. you are part of the study-— forjoining us. you are part of the study. explain exactly how it works. basically, _ the study. explain exactly how it works. basically, we - it works. basically, we normally, imagine stroke as a brain disease, some that in the brand, as a consequence of a disruption of a blood vessel or sometimes the interruption of a blood vessel but does not bring oxygen to the brand. what happens in reality is that

damage destroys the connections between our brain and our spinal cord, which is where it controls movement. what if there is a technology that could allow us to amplify those signals that trickle down the lesion that are surviving, and restore the capability of these to move what we did was a lot of research and found that there are specific spots in the spinal cord located in the neck to restore movement that would allow the cells inside the spinal cord to lesion again after stroke and enable people to move. �* , , after stroke and enable people to move. 3 _ to move. it's in its clinical stages- — to move. it's in its clinical stages. you've _ to move. it's in its clinical stages. you've tried - to move. it's in its clinical stages. you've tried it - to move. it's in its clinical stages. you've tried it on | to move. it's in its clinicall stages. you've tried it on a stages. you�*ve tried it on a few different people. how long before something like this could be rolled out on a wider scale? . �* , . could be rolled out on a wider scale? ., �*, ., , ., scale? that's a very important question- _ scale? that's a very important question. one _ scale? that's a very important question. one thing _ scale? that's a very important question. one thing to - scale? that's a very important question. one thing to say - scale? that's a very important | question. one thing to say that is that we develop technology

already clinically approved father used, for example, spinal cord stimulation should treat refractory pain, which is not respond to normal pharmacological treatments. it excess we need to approve the new technology in the implant stop despite this little thing, we still had to go through all the steps the fda requires to declare these technologies are safe and effective. we need to expand our study to more people and we collected $8 million in funding from the national institutes of health the next step in the next three years, we�*re going to expand to 20 people in a more carefully controlled study. after that if it is accessible will move an extra study of 200 people which would finally determine the efficacy and safety of the technology. that will probably take between 5— seven years. it is estimated that around, and people globally suffer from strokes. is there a specific

timeframe that you found that someone might be able to benefit from this new technology that you�*ve helped to create? technology that you've helped to create?— to create? right now our testin: to create? right now our testing was _ to create? right now our testing was attracted - to create? right now our testing was attracted to l to create? right now our - testing was attracted to people with chronic stroke, meaning it occurred at least six months before starting the study. the participants of our study, one was nine years from the stroke and the other three years after the stroke. right now and know that it works for people that have chronic, but that means that most likely the earlier you intervene, the better results, better outcomes you would properly have. we don�*t know yet. need to do more to find out the optimal timeframe. dr marco capogrosso, thank you very much for your insight. absolutely. thank you. relating

to the fatal _ absolutely. thank you. relating to the fatal shooting _ absolutely. thank you. relating to the fatal shooting of- to the fatal shooting of baldwin�*s cinematographer with a locum don mcgahn on a film set in 2021. the new charges carry a maximum sentence of 18 months, rather than five years. when mark harrison developed multiple sclerosis 20 years ago at the age of 36, he was determined to keep exercising. it has taken mark, who lives in north west england, a decade to develop a prototype of a bike which he hopes will make cycling more accessible to disabled people. and it�*s already being acclaimed, as mairead smith reports. this isn�*t any ordinary trike. this trike could mean fun, freedom and fitness for people with disabilities. this is the triple tread track. it has a pitiless estimator, integrated battery, independent carbon leaf spring suspension and a pattern for its steering.

the triple—tread trike has been developed by mark, who was diagnosed with ms 20 years ago. i really felt i needed the opportunity to exercise more and inclusive cycling options available in the market were a bit limited, a bit childlike in my mind. i needed to create something that would motivate me to get about, out on a bicycle again.— me to get about, out on a bicycle again. it's taken ten ears bicycle again. it's taken ten years to — bicycle again. it's taken ten years to get _ bicycle again. it's taken ten years to get this _ bicycle again. it's taken ten years to get this prototype. you hope you can take the next step. you hope you can take the next ste -. ~ you hope you can take the next ste. ~ . you hope you can take the next ste . _ . ., ., , you hope you can take the next ste.~ ., ., ,,., you hope you can take the next ste.. ., ., ,,., ., step. we are at this stage of lookin: step. we are at this stage of looking for— step. we are at this stage of looking for investment - step. we are at this stage of looking for investment or. step. we are at this stage of looking for investment or a i looking for investment or a partnership, ideally with a bicycle brand, to take this to the next step. and make cycling with a disability as cool as on a standard bike. ms means he can�*t get on the trike, so he�*s called in a warveteran for the test run. it's it�*s really good. it gives me the independence that i need and the feeling of being able to do things they did before my disability.

andy reid lost three limbs caused by a land mind in afghanistan. being out about as amazing feel mental well being, being in the great outdoors, that freedom again, but i haven�*t ridden mountain bikes in the past before i was injured, gives you a sense of anything is possible. it�*s about adapting to your circumstances and people like mark adapting equipment to a disabled person�*s circumstances gives you a great feeling of achievement and well being. and a chance for andy to join in on some family fun. mairead smith, st helens park. the us president arrived in poland after extraordinary of that to inactive wars and on monday. joe biden�*s unannounced and surprise trip to kyiv with the head of the first anniversary of the russian invasion of ukraine. he said america would stand with ukraine for as long as it takes an pledge over $500 million of

military aid. that�*s all for this programme. you can reach me on twitter — i�*m @lmmisztak. hello there. gales to begin with on monday, warmth to finish it. in fact, it was a very mild day, pretty much across the country, but highs of 17 celsius recorded in east anglia, 63 fahrenheit. the average for this time of year across the country, generally around eight degrees. now, we do have these weather fronts across the far north which are bringing outbreaks of light rain. but this milder air sandwiched between those two weather fronts is what�*s known as a broad, warm sector, and it can often at this time of year bring a lot of clouds. so, it�*s going to be a grey start, but an incredibly mild start first thing on tuesday morning. here�*s the rain from those

weatherfronts, then, pushing out of the western isles up into the northern isles. not as windy as monday morning, but a noticeable breeze and the cloud always thick enough for a spot or two of drizzle. now, on the whole, greyer skies, more cloud around, but where we do get some breaks, temperatures will tend to respond. i3, ia degrees, not out of the question. a change to come, though, as we move out of tuesday into wednesday. there�*s a cold front sinking its way steadily south. not bringing that much in the way of rain, but certainly introducing a change of wind direction. coming round from the northwest, a cooler, fresher source. so, to begin with, on wednesday, we�*ll have some light, showery rain sinking its way into east anglia and the south east of england, brightening up considerably behind with a few scattered showers being driven along by those north—west winds. and some of them to higher ground in scotland, turning increasingly wintry. notably fresher feel to the day, 7—ii degrees, the overall high. now, through wednesday into the early hours of thursday morning, mightjust have to keep a close eye on the chance, perhaps, of a few wintry showers running

down through the north sea here under clearer skies and lower temperatures. so, it�*s going to be a chilly start to thursday morning. touch of light frost in the far north not out of the question, but high pressure always sitting out to the west. so, the wind direction coming round from a north—westerly, not too cold, but certainly fresher than it has been in recent days. so, there will be a little bit more in the way of sunshine around on thursday. thicker cloud and outbreaks of showery rain into the far north, but in the sunnier moments shouldn�*t feel too bad. top temperatures of around eight or nine degrees, down to where we should be really for the time of year. it looks likely that we will continue to see a good deal of dry but fresher weather for many as we head towards the weekend.

this is bbc news — the headlines: president zelenskyy has said a world order based on rules and humanity depends on how events play out in ukraine. speaking after president biden�*s highly symbolic surprise trip to kyiv — he said ukraine�*s victory over russia depended on resolve — and he saw such determination in mr biden. rescue services in turkey are once again searching for people trapped under rubble after a new tremor in the southeast near the border with syria. this is the same region where 16,000 people were killed two weeks ago by a much larger earthquake. three people were killed. police in the uk have confirmed that the body discovered in the river wire

in lancashire yesterday is that of nicola bulley, who went missing more than three weeks ago. her family released a statement, criticising some sections of the media for ignoring their appeal