this is bbc news, the headlines. the 620 summit in hamburg has drawn to a close, with a failure by world leaders to bridge the divide over climate change. angela merkel said she deplored president trump's decision to withdraw from the paris agreement. mr trump left the summit without giving a scheduled news conference. he did win a concession on trade. while renewing a pledge against protectionism, the final communique underlined the right of countries to protect their markets. vladimir putin says he's established a working relationship with donald trump. the russian president gave an upbeat assessment of future co—operation. iraqi government forces have begun celebrating in mosul, with the announcement of a final victory against so—called islamic state thought to be imminent. state tv says government forces are battling to clear the last pockets of resistance. more now on our main news this hour — the 620 summit in berlin, and in particular, the bilateral meeting between theresa may and donald trump.

the american president said he expects "a very powerful" trade deal with the uk, to be completed "very quickly". this report by our deputy political editor, john pienaar, contains some flash photography. theresa may sees this relationship is key to a successful breakfast. she was counting on warm words, encouragement. today on trade, the president offered plenty of both. we are going to do a very big deal, very powerful deal. they think we will have that done very, very quickly. it wasn't all this chummy, mrs may wants him to drop his opposition to the climate change treaty that trade is a cot — 50. —— priority. not everyone will be as happy as mrs may. worth cultivating the us friendship with the president, his family, his advisers. though his daughter ivanka is both.

meeting the japanese minister is the same. warm words about trade and can be comforting. even in useful at place like this but striking a deal with america will take hard bargaining and plenty of government officials remained to be convinced that agreement around the world will ever compensate for a tough, each —— even harsh deal with the european union. prime minister insists it can be done. mrs may is largely seen as being weakened by the june be done. mrs may is largely seen as being weakened by thejune election but today insisted she will be bold. bello i have held meetings with other world leaders at this summit and have been struck by their willingness to do trade deals with the uk after brexit. with the

tougher trade deals, could the uk be worth of, whatever deals you might struck with america, japan or anyone else? what we're doing is working to negotiate a good, comprehensive free—trade agreement with the european union. i think it is the interest of both sides to have the good trade agreement that i am also optimistic about the opportunities we will see around the world. her ambitions will be tested hard along with her own hopes of carrying on much longer as prime minister. now on bbc news, it is time for witness. hello and welcome to witness, with me, rebecca jones, here at the british library in london.

we've got another five people who've experienced extraordinary moments in history first—hand. this month on the programme, a mother who took on argentina's military rulers to find her daughter. paul mccartney's brother who remembers one of the beatles‘ most famous performances. and an astronaut who survived a collision in space. but first, back in 1953, american husband and wife, julius and ethel rosenberg were executed by electric chair after being convicted of spying for the soviet union. our first witness is the rosenberg's son robert. archive: one of the greatest peacetime spy dramas in the nation's history reaches its climax asjulius rosenberg and mrs ethel rosenberg, convicted of transmitting secrets to russia entered the federal building in new york

to hear their doom. the last time i saw my parents was in sing sing prison, just a couple of days before they were executed injune1953. i have this very strong visceral sense of a warm and loving family. my father played word games with my brother. i sat on my mother's lap. they were pretending like nothing was wrong, that we'd see them, like we'd see them in another few weeks. my brother, he knew that was wrong. and he wanted them to acknowledge the terrible situation that we were all in. and so he started wailing, "one more day to live." both my parents were children of the depression.

they grew up in poverty on the lower east side of manhattan. my father, julius, was an electrical engineer. he was a member of the american communist party. my mother ethel was a housewife. my father was arrested in july of 1950, in new york city and my mother was arrested. both were charged with conspiracy to commit espionage. the government said julius rosenberg was a master spy who led an spy ring that stole the secret of the atomic bomb and gave it to the soviet union in 1945. julius was guilty of espionage, but it didn't have anything to do with the secret of the atomic bomb. he had no knowledge of this. it's hard for me to believe that my mother didn't know about what he was doing. but there is no credible evidence that my mother participated in any way. this was the great red scare, the mccarthy period. the government was saying there was this international

communist conspiracy that was out to destroy our way of life. fear makes powerful people do very dangerous things. the trial at which they were convicted was a travesty. we now know the judge secretly communicated with the prosecution, that evidence was fabricated. the chief prosecution witnesses perjured themselves. the government of the united states used the death penalty, not as punishment, but as extortion. the purpose, as one of the fbi agents put it, we didn't want them to die, we wanted them to talk. there was a worldwide movement and mass movement, even within the united states at the height of the mccarthy period, to save my parents' lives. they were executed on june the 19th, a month after my sixth birthday. my brotherjust kind of hung his head. and i came in and i knew

something was wrong, but i didn't want to hear about it. even a month after the execution, i was saying, "when are we going to go and see mummy and daddy." and he'd have to remind me they were dead. my parents should not have been executed and we took on a campaign to exonerate ethel. have we given up? no. we haven't given up. my brother and i, we are marathoners. we are going to keep going. robert meeropol, remembering his parentsjulius and ethel rosenberg. now, back in 1967, the bbc organised a live international television broadcast called our world. they invited the beatles to play and they came up with a new song called all you need is love. paul mccartney's brother mike was in the studio when the performance took place. this is steve race in the beatles

recording studio in london, where the latest beatles record is at this moment being built up. notjust a single performance, but the whole montage of performances. none of us knew what the hell was going on, but everyone went along with it and it was just a magic thing. # all you need is love. # all you need is love, love. # love is all you need. it was all such an experiment. it was that ridiculous three, two, one... you're live to 700 million people. # all you need is love, love. # love is all you need. in 1967, i was in a comedy group, it was a satirical comedy, poetic word imagery group called the scaffolds. and i used to stay with my brother in his house.

so he said, there's this big thing coming up, do you fancy coming along? the our world broadcast was this extraordinary idea to link all these countries. for the first time we can see right round our world from sunset to dawn by television. in 43 control rooms all around the world, production teams are monitoring and selecting the hundreds of pictures and sounds from five continents which will combine to make this historic programme. and so, how do you wrap up what was happening in london in the 60s in one song? john had written this thing called all you need is love, which was a peace song. we'd had the vietnam war, kennedy had been shot and it seemed to sum up the hopes and positive thinking of that era. kill it.

very good. that will do for the vocal backing, very nicely. we'll get the musicians in now. everyone was rather polite, very quiet because it was such a big thing that was happening. here then is final mix track take one of the song which we offer to the whole world. # love, love, love... and then to actually experience the slow and the format of the song, you heard all the little bits fitting in and then the orchestra joining in. and it building up, and up, and up. it was getting better, and better and people where relaxing more. # nothing you can sing that can't be sung.

the whole thing built slowly, slow and apprehensive at first. and then into it and thenjohn and our kid delivering the harmonies and delivering the song and then building up to the crescendo and then it was party time. # all you need is love. all our friends are there, mickjagger from the stones, marianne faithfull, his girlfriend, all the cream of pop society. everyone is on such a high, the placards are going round, the balloons, the confetti is like snow, you are covered in snow, etc. and this atmosphere was electric and beautiful. # love is all you need. and it goes to another country and then this beautiful atmosphere in the studio. right, it's a wrap, love. and we all went home. laughter. mike mccartney in the beatles home town of liverpool. for almost 20 years, the nobel prize—winning author, ernest hemingway, had a house

on the caribbean island of cuba, where he wrote some of his bestselling novels. as a young boy, alberto ramos worked on the estate and he later became hemingway's cook. alberto ramos, speaking to us from hemingway's house. remember, you can watch witness every month on the bbc news channel or you can catch up on all out films along with more than 1000 radio programmes in our online archive. just go to bbc.co.uk/witness. in the late 1970s, thousands of young men and women were detained in argentina for their opposition to military rule. among those who went missing was ana maria barvalle. her mother spoke to witness. alberto ramos, speaking to us from hemingway's house. remember, you can watch witness every month on the bbc news channel or you can catch up on all out films along with more than 1000 radio programmes in our online archive. just go to bbc.co.uk/witness. in the late 1970s, thousands of young men and women were detained

in argentina for their opposition to military rule. among those who went missing was ana maria barvalle. her mother spoke to witness. archive: they are called the mothers of the plaza de mayo, the square in the centre of buenos aires where they hold the same sad demonstration every week. they've all had at least one relative who's disappeared. merta, in the offices of the mothers of the disappeared. and finally, in june 1997, an unmanned supply vessel crashed into the mir space station. the station quickly began to leak air and the astronauts on board desperately tried to seal it. michael foale was one of them. he spoke to witness about surviving a crash in space. mir was a space station built by the russians. the impression you got

when you opened up the hatch and went into mirfor the first time were twofold. one was the smell. it was a smell, a bit like an oily garage. maybe a little bit of must, because we did have mould on the mir. and then the other impression is clutter. as you go through, it's basically like going into the oesophagus of someone's throat. after about six weeks of being on the station, i'd been doing my experiments, i'm very happy, i get up on june 25th. vasily tsibliev, the commander and alexander lazutkin, the flight engineer had been using radio control equipment to fly a cargo ship called progress that weighs about seven tonnes into the mir station using a tv, looking at the station. as i look at vasily‘s tv screen, i can see the orientation is all wrong for a proper docking to take place. and sasha, the flight engineer, says to me...

and he means, the soyuz spacecraft which was joined on to the end of the station, which was at that point our lifeboat. but i understood because of the emergency in which he said it, that he meant go there to save your life. and as i float through, i feel the whole space station shudder and move around me. i'm pretty sure this may be my last breath, because i'm looking at the thin, three millimetre thick aluminium walls, just waiting for them to part. the klaxons go off when there is a pressure leak. then i felt my ears popping, which meant in this case, the air was leaving the space station and there was a whistling sound coming from the spektr module. in 23 minutes, if we did nothing, we would start to go unconscious.

sasha comes to me and doesn't say a word. he just ferverishly starts trying to remove cables leading into the spekre module. sasha looked around for a large hatch that could be put in place. and we just put it on and as it went on, it sucked in. because the station had been hit by the progress, we were now tumbling and rolling. at that point the soyuz had no electric power and the batteries were giving out, there wasn't a fan running, none of the carbon dioxide removal was working, no oxygen regeneration and no communications with moscow, or anybody else. it was a totally dead station. this is not something you see in the movies where it gets solved instantly by some brainy chap. it probably took about six hours. we used the soyuz spacecraft and just fired the jets to stop the space station tumbling and rolling. then wonderfully, we came into sunlight after this

and all of sudden the fans started to come on and the lights came on. and i said, "vasily, we've done it." however, for the next month, the station was inoperable in any normal sense. it could just sustain our lives and nothing else. when finally the shuttle came in october, i was really, really quite happy to see them. and as we backed away from the mir station, i looked at it and thought, i don't really mind if i don't ever see that again. michael foale, safely back on earth. that's it from witness this month. next month, lucy hawking will be here at the british library to guide you through another five moments in history. but for now, from me, rebecca jones and the rest of the witness team, thanks for watching and goodbye. hello there.

after a warm, muggy night, sunday should bring us some more warm weather, with some sunshine. not dry everywhere, though, some rain in the forecast too. during saturday, there were scenes a bit like this. a lot of sunshine around, this is kerrigan, in wales. and now, and as we move through the day on sunday, similar day for many of us, blue sky and sunshine, but there will be some rain around across northern parts of the country.

we have got quite a slow—moving front, and that is bringing outbreaks of rain across parts of scotland and northern ireland through the day on sunday. whereas further south, across england and wales, higher pressure is holding onto the warm weather. not a lot of isobars on the map, so just a very light breeze around. a pleasant enough day across most parts of the country. as we move through the day, we've got that front bringing cloud and patchy outbreaks of rain for northern ireland, intermittently to southern and western scotland. northern scotland, though, should brighten up, and england and wales should have quite a lot of dry weather, too. so this is a:00pm in the afternoon. some sunshine for stornoway and inverness. cloudier for aberdeen, with somerain across northern parts of northern ireland, sinking its way south into parts of dumfries and galloway, for example, as well. as we move into england and wales, mostly sustained dry, with some good spells of sunshine, but there is just the odd chance of catching one or two of these light, passing showers, particularly across the east of wales, the midlands, down towards the south—west of england. fewer showers, i think, reaching eastern parts of england. it is likely to stay dry at lord's for the fourth day of the test match.

england continue to play south africa. 26 degrees or so, but a bit more cloud around than we have seen moving into sunday evening, still that rain in northern ireland, central and southern scotland, pepping up for a time, in fact, and then drifting its way eastwards overnight. fairly cloudy skies further south, with a few showers around. could get the odd thunderstorm across the far south—east, as well. but still muggy, 17 degrees or so in the south, although slightly fresher conditions moving into scotland and northern ireland. after that fairly cloudy start for some of us, i think it should brighten up on monday, and then we're set to see a day of sunny spells and scattered showers bubbling up through central and eastern areas, in particular, through the course of the afternoon. the odd heavy one, but certainly not a washout. some good spells of sunshine in between any showers. highs between about 16 to 25 degrees or so. into tuesday, further showers across northern parts of the country. more persistent rain moving its way east, across southern parts of england, south wales, as well. we could do with a little bit of rainfall across this part of the world. and it will be a little bit cooler, with temperatures around about 16 to 21 celsius.

and then it stays a little bit cooler, particularly overnight. more comfortable for sleeping as we head through into the middle part of the week, with a few showers in the north. bye for now. this is bbc news. i'm duncan golestani. our top stories: no consensus on climate change at the end of the g20. donald trump claims success for his policies — world leaders back plans to cope with global warming. after two days of violent protests — hamburg starts to recover from the havoc caused by demonstrators at the summit. edging closer to victory in mosul — some iraqi government forces begin celebrating the defeat of so—called islamic state. still searching for survivors after heavy rains and floods in southern japan — 16 people are dead — and dozens stranded. all backgrounds, all persuasions, all colours of the rainbow — tens of thousands join

london's gay pride parade.