on whether to impeach mr trump. however, they may decide to delay the start of a senate trial until afterjoe biden‘s first hundred days in office, to allow him time to launch his agenda in congress. indonesian investigators believe the boeing 737 carrying 62 people broke apart when it hit the water, which they say could rule out a mid—air breakup. navy divers say they're confident they will be able to retrieve the flight recorders. the uk health secretary has warned people against bending coronavirus lockdown rules in england, and backed toughpolice enforcement. he urged everyone to adhere to restrictions aimed at bringing coronavirus infections under control. the warning comes as hospital admissions continue to soar.

more now on the current covid outbreak here — one of the highest infection rates in the country is in surrey, where every hospital mortuary is now full — and almost 200 bodies are being stored in a temporary morgue. other local authorities have told the bbc they expect to open similar facilities soon. our home editor, mark easton and cameraman, james anderson, were given access to the emergency surrey site — located at a former military hospital. this is the cold conclusion of a pandemic out of control. an emergency body storage facility has been assembled in woodland in surrey. with hospital mortuaries almost overflowing, the county's dead are brought here. 20 more body bags unloaded today. to respect the dignity and sensitivities of the dead and theirfamilies, we're not showing the bodies but i can tell you that in this fridge, there are around 50 body bags, among 170 bodies

currently stored here. these racks are expected to be full in just a few days. around half the body bags stored here are marked covid—positive. surrey now has one of the highest infection rates in the country. the numbers have increased dramatically and rapidly over the last two and a half weeks, you know, and that is causing us some concern. at present, there's no sign of that actually diminishing, either. the message from the guidance and from government is really clear and i think we should be doing our utmost to uphold that. this facility is sort of testament of where i think we're actually failing to do that at present. fire and police officers have been drafted in to help, some brought back from retirement. until recently, kirsty was a detective on surrey‘s murder squad. it's been a dreadful year for everyone. however, working here, i can see that the numbers are increasing, not decreasing and i would hate, for the sake of people staying indoors rather than going out and meeting people, that their loved ones or they themselves were to end up here.

that's exactly what we don't want. surrey is struggling to cope with a raging pandemic that shows little sign of abating. health officials worry the current restrictions are simply not enough to turn the tide. this lockdown doesn't look or feel like the one last spring. some are urging the government to introduce a curfew, but the prime minister's understood to regard that idea as unworkable and un—british. just asking people whether they think the public‘s taking this lockdown seriously enough? i think there are shops open that aren't essential and also previously, you couldn't have cleaners in your house and other tradesmen, which you are now, so i don't think this lockdown is as strict. i think people have got complacent over it, think it won't happen to me and they're just going about things normal and like nothing's different. there are 845 spaces at surrey‘s emergency

body storage facility. some fear that may not be enough. mark easton, bbc news, surrey. now on bbc news, in this edition we look back at some of our most memorable recent stories. we hearfrom the man who invented the polio vaccine, and how hiroshima's trees became a symbol of survival. hello and welcome to witness history in nairobi, with more remarkable moments from the past as told by the people who were there. and today, we present five of our most memorable recent stories. coming up, how hiroshima's trees became a symbol of survival. plus, revealing the truth about a civil war atrocity in el salvador. the algerians who fought with france against independence. and the man who invented the revolutionary prosthetic leg. but first, with a remarkable global effort to create covid—i9 vaccines, we look back at a previous world—changing

vaccination breakthrough. in 1955, a group of us scientists led by doctorjonas salk announced the discovery of the first polio vaccine that saved millions from death and disability. his son, doctor peter salk, spoke to us about his father's extraordinary achievement. back in the 19505, people were overjoyed at the fact that here is a vaccine that is going to protect us from this terrible, frightening scourge. polio is a disease that's caused by a virus that gets into a person's mouth. the virus grows in the intestinal tract and then gets into the bloodstream from which it moves to the brain and the spinal—cord, kills the nerve cells that signal the muscles when to move, and because of that, causes

paralysis in the muscles. my father, when he was young, just knew that he wanted to do something to help humanity. the vision that he had at that point was that he would then go into medicine. he got a knock on the door from the national foundation for infantile paralysis, would you be willing to participate in a typing programme to determine how many different immunological types of polio virus there are? my father leapt at the opportunity. this would be drudgery, in terms of the kind of work that was done, but it was an opportunity of creating a vaccine against polio. the worst year was 1952. there were 58,000 cases of polio. and nobody would ever know when was the epidemic going to come? when was it going to strike? this disease caused a huge amount of fear. and there was a lot of pressure.

every year there were these devastating epidemics. first there were the studies that were done on animals in the labratory, that all pointed in the right direction. then my father undertook some preliminary tests in children who were at a home for crippled children outside of pittsburgh. these were kids who had already been affected by polio. the early studies had gotten far enough that he knew that this vaccine was going to work. the day that he came home from his office bearing syringes and needles which he boiled on the stove in one of our kitchen pots to sterilise, loaded up the experimental polio vaccine that he was working on and then lined us kids up and administered the injections.

i'm going to say to you, i have no words in which adequately to express the thanks of myself, all of the people i know, and all 164 million americans, to say nothing of all the other people in the world, who will profit from your discovery. i am very, very happy. there was absolute jubilation. literally church bells rang, factory whistles blew. it was such a relief. the polio vaccine had a huge impact on society. we've moved into a situation where people are feeling what dangers might vaccines have in and of their own right. it's important to be aware of the problems that can take place with vaccines, but it's disadvantageous to be so hyper reactive to the whole notion of vaccination that the baby gets thrown out with

the bath water. dr peter salk on a vaccine that change the world. now, 75 years ago, in 1945, the first atomic bomb was dropped on the japanese city of hiroshima. hundreds of thousands of people were killed and injured, yet, amid the devastation, remarkably, some trees in the city survived and they have since become a symbol of hope and recovery around the world. translation: these are the real witnesses. these trees have seen everything. explosion

translation: at 8:15am on august the 6th 1945, an american bomber plane dropped an atomic bomb on hiroshima. it exploded 600 metres above the hospital. it didn't explode on the ground, but in the air. i've heard that the bomb was dropped from this height to kill as many people as possible. the radiation burnt all living things in hiroshima, particularly in the two kilometre radius of the epicentre. people were burnt alive. this garden is about 1.5 kilometres from the epicentre of the bomb. i heard from many people that at the time there was no colour in hiroshima. there was only black, white or grey.

some people said that no plants would grow here for the next 75 years. and everybody believed that rumour. they thought this town was dead. at the time, the trees looked like charcoal. a stick of charcoal, like this. but on some of the trees, buds emerged. when people saw that the green buds had come out, they thought they could survive as well. it was comforting. icanjust imagine the vividness of the tiny green bud in that colourless world. it must have given people some comfort and hope. my friend and i established the green legacy hiroshima project as co—founders.

green legacy hiroshima tries to plant the seedlings of these trees in places with nuclear power, places under the nuclear umbrella, and those places who have experienced various natural disasters. we hope the trees can deliver the message that we as people have the power to recover and survive. trees have a magical power to tell each person what they need to hear. they speak to each human being as well as the whole of humankind across the world.

tomiko wata nabe there, the co—founder of green legacy hiroshima. what a remarkable story. and now a story about the daring to speak the truth to power. in the 1980s, el salvador was in the grip of a civil war. rebels were fighting against a us—backed military regime. one night in 1989, sixjesuit priests were dragged from their beds and murdered, along with a housekeeper and her teenage daughter. the government blamed the rebels, but one woman risked her life to tell the world what really happened. the priests' funeral took place at the university where they were murdered. they were el salvador‘s leading left—wing intellectuals. thousands came to mourn, not just for the dead men, but because they symbolise the hope that el salvador might become a country one day where power came from the ballot box and not from the barrel of a gun. translation: the priests were always on the side of the poor. that's how they were.

it still hurts to remember them and to remember what happened. i will keep telling this story until my dying days. i can never forget it. the government troops are fighting the biggest guerrilla offensive since 1981. the rebels appear to have moved into the capital in force and have held positions for more than 12 hours. translation: there were soldiers and rebels shooting all over the place. we couldn't go out and food and water were running low. i was very nervous. i worked as a cleaner at the jesuit university. i called one of the priests and asked if we could come and shelter on the campus with my husband and daughter. he said, yes, of course, come. it all happened just after midnight.

we were awoken by the sound of gunfire near the entrance to the university. i got up and went to an open window to look out. i could see the shadows of men at the entrances of the rooms where the priests slept. they were soldiers. i heard one of the priests calling out that it was an injustice, a disgrace. then i heard shouting and more shooting. after that, there wasjust silence. the killing that has caused the greatest outrage is the murder of the six catholic priests dragged from their beds and shot yesterday morning. translation: in the morning, we went to see what had happened.

even from a distance, you could see the bodies of the priests laid out on the grass. in a small side room, there were two women lying dead in an embrace, full of bullets. they were the housekeeper and her daughter. the soldiers didn't want to leave any witnesses. the government said it was the guerrillas who killed them. but i said, no, it was the army, and that i had seen the soldiers. they didn't like me saying that. after that, i was taken with my husband and daughter to the airport and put on a plane. the jesuits said that they couldn't protect me in el salvador. when i got to miami, i was interviewed for a week by the fbi. they wanted me to change my story. eventually, i told them,

you can believe me or not. i really don't care. i guess that i was there for a reason that night. another person might have kept quiet and not spoken out. but as god says, you have to do something in this life. and i did something. what a remarkable woman. two soldiers were eventually prosecuted for the murder, but were later released under an amnesty law. remember you can watch witness history every month on the bbc news channel or you can catch up on our online archive. just search for bbc witness history. next, a part of african history that is often overlooked. in the 19505 and 60s during algeria's bitter war of independence against france, thousands of algerians actually fought on the french side. for that, after the war,

many would pay a high price. this person was one of them. translation: the harki local forces were on the side of the french army in algeria's independence war. we gave everything for france but what we didn't know was that france would abandon us. as tension rises in french north africa, france arms her algerian supporters for defence against rebel raids. in this province, weapons are being handed out personally to muslim recruits, where hundreds are being enrolled daily. translation: i was about 17 and a half, 18 years old at the time. you had to choose between france and the rebels. my father had been in the french army and had fought

in world war i. my brothers were also in the french army. so i chose france. translation: i was proud of what we did. proud of saving france. we were always sent out in front of the french troops. if there was an attack, the harki would be the first to die. we had to get rid of the fighters who are terrorising the population. translation: we always knew

that one day algeria would gain its independence. what general de gaulle should have done was take all the harki and their families to safety in france. but in 1962, the french disarmed the harki and left us defenceless. the other side took advantage of this and began to round us all up. they took me to a barracks where there were about 50 other harki prisoners. there was blood everywhere. they stripped me naked and started torturing me with electric shocks. each time a new group of soldiers came on shift, they began again. the same thing every day. the fln even made us

dig our own graves. some people were thrown in alive. some were thrown into the river. and the jackals did the rest. i was arrested onjuly the 8th, 1962. i escaped on september the 10th, 1962. it took me a long time to feel welcome here in france. i decided to change my name and to convert to catholicism. i wanted to make a fresh start. i could say that i was born under a lucky star and that i am lucky. but not all the harki were so lucky and that is

the fault of france. finally, a story about a remarkable invention built out of adversity. as a young man, this man lost his foot in an accident and designed a prosthetic leg to allow him to keep running. the invention revolutionised the world of parasports. when you lose body part, it's different from any other experience because it's gone. it'sjust gone. that was the hardest part, knowing that it was irreversible. i had my accident in the spring of 1976 when i was 21. winter had just broke and it was now time for spring water skiing. i havejust taken a big cut to the left and the boat quit. then, all of a sudden, over my right shoulder, i turn around, and another

boat came right at me. and the odds are, my ankle's that wide, and that's what it hit. the propeller. had i not had a wet suit on, i would've bled out. major arteries were cut. but my knee was bent, the wet suit was tight, itjust stopped blood flow. they put a cast on the stump. on the bottom was a pink, rubber foot. i was sitting there, looking at my pink foot and i just felt like my life was gone. the artificial limb, especially if it is a leg, is the most important thing in their lives. they ought to get, and it seems now that they will get, the best that technological modern skills can provide. the question is, when? i knew that there was a better way. several years prior they had just put a man on the moon. so my early attempts

at creating something that would spring and push off was, you know those insoles on the side of your shoe? that was my first concept. let's build one of those. those early ones weren't too bad. i had a little block of foam in the toe and heel. but then i got blessed. i met one of the world's leading aerospace graphite engineers. that night, we drew up the drawing of what the leg was to look like and within two, maybe three weeks, i builta leg and i attached it to my sock. i ran down his hallway, i mean, fast. that was freedom. that was a real inner freedom. i probably built 50, maybe 60, more legs. different types, different arrangements, broke them, fell down. we finally launched

our first foot. the first carbon graphite, energy storing running prosthesis ever. so, if you look at the structure, it is millions of tiny little hair—like fibres. those fibres stretch just like our tendons do. so that energy can be stored in those fibres. that's how we came up with the c shape foot. my foundation's name is called second wind. i'm involved in developing a foot for landmine survivors. they have to go to work. they are labourers, they're planting fields. they don't have the luxury of sitting down. for asia, a lot of people work in rice paddies. you can't wear a standard foot in water, they rot. in afghanistan, iraq, they are on rocky hillsides going up and down mountains.

we built a design that has increased function, decreased weight, and increased strength. the foot has to be able to endure all kinds of different climates. we are calling it the world foot. the world foot for all countries, all peoples, everywhere. when i think of all the amputees in the world, that i can actually share that, there was never a greaterjoy than that for me. that is all for this episode here in nairobi. we'll be back next time with more first—hand accounts of extraordinary moments in history. but for now from me and the rest of the team, goodbye. hello there. quite a few of us had a pretty cloudy day, really, on sunday, but there

were some cloud breaks, a bit of sunshine around. in the right place at the right time was pandapix, spotting this beautiful sunset in the doncaster area of south yorkshire. now, sunday was a day that was a little bit less cold than it has been over recent days. still chilly, though. just one in hereford, four in manchester. but it's turning milderfor the vast majority of us, and through monday, temperatures between 8—10 degrees celsius pretty widely. now that milder air is working in at the moment, so temperatures are lifting. we do have rain around, though. damp across north—western areas, rain turning a bit more persistent in northern ireland and heavy rain in western scotland combining with snowmelt brings the risk of some flooding here. the only place, really, that's really cold overnight is shetland, where we'll still see some frost and there'll still be a few snow showers around as well. monday, milder air then pushes in off the atlantic, and with this milder air, we're going to have strengthening west—southwesterly winds. a mild day, but a cloudy day for most of us. a few breaks every now and then. the cloud at its thickest across north—western areas, where we'll have some

rain, and persistent rain in scotland. well, northerly winds feeding into this weather front. we'll start to see the rain turn to snow across the highlands and the grampians, with accumulations above around 200—300 metres' elevation. could be some pretty heavy snow, too, but otherwise, it's mild — 8—10 degrees celsius. for tuesday, we've got pressure building to the north of the uk, and that's going to send colder north—northwesterly winds across scotland and across northern and some eastern areas of england, too. might be colder, but there'll be loads more sunshine to go around. some wintry showers for northern scotland, an odd shower also just brushing into parts of norfolk. now, it will be cold for many of us. temperatures around 2—6 degrees celsius. but in the south west, where it stays cloudy and damp, it will be relatively mild, around ten in cardiff and plymouth as well. now, we've still got mild air into western areas on wednesday

behind this next weather front. this front pushes in, bringing heavy rain, turns to snow for a time across the high ground in scotland and across the pennines as well. big temperature contrast. 10—11 degrees celsius towards western areas, but still cold in the north east with temperatures about three. we could start to see some of that snow get down to potentially some lower levels through wednesday night, but some uncertainty about that.

welcome to bbc news, i'm james reynolds. our top stories: a senior democrat lays out the possible timeline for impeaching donald trump after at least 200 democrats give their support to a draft article of impeachment. indonesian investigators believe the boeing 737 that crashed on saturday broke apart on impact, which could rule out a mid—air break—up. japan has declared a state of emergency in tokyo fewer than 200 days to go before the olympics. and with landmines now clear, a christian shrine on the riverjordan has hosted its first religious procession in more than 50 years.