hello, i'm david eades with bbc world news. our top stories. one of two gunman who killed 19 people at a museum in tunis was known to the intelligence services. gun battles break out in the. yahoo! falls out of china. we'll look at what's behind the internet china turning its back on the world's biggest online population. and why lesser writing is making a comeback among students in nairobi as the bbc's school report goes global.

hello. thanks for joining us. the tunisian authorities say that the country's intelligence services did know about one of the two gunman who carried out the attack at the prestigious bardo museum in tunis. in all, 19 people were shot dead including 17 foreign tourists. on the map you can see the bardo museum there, of course just adjacent is the tunisian parliament, where you would expect high levels of security. well, terrified tourists ran from the museum. there were two gunmen killed by security forces in the course of all of this. and we have actually just heard that one more tourist has been found in the course of today, hiding out in the museum. and tunis' president has pledged

to wage what's called a merciless war against them. there's been a stable transition to democracy. earlier, i got more details about the attackers from the bbc's lavina in tunis. >> reporter: the government said earlier that the two gunman who were involved were tunisian nationals, one on the south, the other man from the capital of tunis. there are also reports that one of them traveled to iraq and it's not entirely clear how much the gunmen knows about that. there are reports that he was contacting his family from iraq three months ago, but that's something that's currently being investigated. >> is this, do you think, in a sense, a culmination of a growing sense of anxiety for the intelligence services the security services that something like this might have been in the offing? >> yes, i think people have been

concerned about the security situation here for quite a while. there haven't been attacks on foreigners the way we saw yesterday, but there have been attacks on security forces. and i think what a lot of people here are concerned about is the impact it will have on the perception of the country abroad, the perception of this economy, and the perception of its tourism industry. because this will probably have an effect on trouble warnings that will be issued by foreign governments. >> yeah, we saw pictures and scenes of support for those who died, and almost a sense of readiness to resist this if we call it a terrorist attack. is that continuing today? will that linger do you think? i mean the picture behind you is very much business as usual. >> yes, it seems like it's business as usual here but we are expecting people to gather here today as well as tomorrow and i think people are trying to come to terms with what happened here.

the first time this kind of attack happened in the capital, in the very heart of the country, but people are concerned, they are hoping the people, that tourists will come back. so i think we will see memorials and commemorations throughout the next couple of days. we're also expecting an update on the condition of those who were injured yesterday. we think more than 50 people were injured and some of are undergoing surgery. >> that's the scene in tunis. heavy fighting in southern yemen has led to the closure of the international airport in the port city of adan. several people have been killed in in clashes. yemen's been in political limbo, really, since the government resigned in january after shia sieved the presidential palace. let's get more on this. i'm joined by bbc arabic

mohammad yeti. can you give us a picture of what's happened in the last hours? >> the latest we're hearing is that the army units that are allied to the president are joined by militias who support him have managed to repel this attack on the airport in adan in south yemen, by this special forces police unit who is allied to the former president, who is allied to the houthi rebels. >> in that last sentence, you've given us a sense of the complexity of what we're having to deal with. is there any sense of one side or the other is getting the upper hand at the moment, or is the government sort of clinging on? >> well the houthi rebels who come from the north of the country, they took over the capital in january and they basically tried to -- they said that they're now in control. they put the president under house arrest. he managed to flee last month,

to his hometown of south yemen, adan, where he comes from originally, and he's trying to -- since going there, he's trying to consolidate his power there. so he has this militia that's allied to him, and because the army is just -- part of the army is now with him, but in adan there is these, at least two or three army units, who are allies to the former president, who is allies to the houthi rebels. and they're trying to isolate him there, while he's trying to consolidate his power. >> thanks very much. britain is concerned that it sent military trainers to the south of ukraine to help the government in its fight against the proof h-russian rebels. russia's support for the separatists is to be discussed later today. i spoke to tom barrage and asked

him how symbolic he thinks the british involvement is. >> i don't think anyone is suggesting for a minute it will shift the military involvement in the east of ukraine in any real way. but these instructors have arrived now, have been working for a few days with ukrainian troops, and that tallies with the fact that the west in general has only supplied non-lethal military aid to the ukrainian operating room things like sleeping bags laptops, gps systems, the u.s. is providing radar and surveillance drones. it's a symbolic move, but it's well received of course by the ukrainian public government and military. i think, though there is a debate here in ukraine, and there are calls for the west to go that one step further and to arm the ukrainian military. but, of course countries like britain haven't taken that option off the table, but for now, they don't seem like doing it anytime soon. >> we've come to see this as a sort of east versus west conflict, haven't we? and in fact is there a little

bit more nuance, particularly for those people right on the front line of this conflict. >> yeah, i mean we've been in the east over the last few days traveling around, on both sides of the divide. there's a front line of course which divides the area controlled by pro-russian rebels from the area controlled by the ukrainian government. but the people families are divided on either side of that line. >> reporter: in war, you rarely witness a scene like this. allah is reunited with her daughter and grandchildren. they've been living on different sides of the fighting in eastern ukraine. >> translator: i'm so happy the kids have come back. i haven't seen them for six months. with a fragile cease-fire here the family are moving back home

to a neighborhood in the town of debaltseve, now controlled by pro-russian rebels and badly damaged by recent shelling. >> we want the kids to go back to school. we want to go to work. >> when i heard my granddaughter got her first teeth and took her first steps and i wasn't there to see it that was very hard. >> not far away on the other side of the divide, people who are desperate to see family and friends are forced to wait outside the local government building. she tells us she can't get to her home in debaltseve. she says this is the seventh time she's come here, and if she finally makes it inside she'll hope to get a precious pass which people here now need to cross into rebel-held territory. checkpoints mark the only road that's still open between

ukrainian-held territory and the rebels. >> fueled by what they see in the pro-russian and ukrainian media, people living on either side of this divide see the war in very different ways. friends and family are separated physically and by their beliefs. >> reporter: she decided to leave her house and her husband in rebel-held territory. she now shares this room with her daughter on the ukrainian side. her husband is pro-russian but elena supports the ukrainian government. >> it's very hard. for me i have nothing to lose anymore. my home is 300 kilometers from here my family is divided, and all i have is my work my daughter. >> as ukrainian army positions, the guns are generally quiet,

but they still point east towards a front line that separates families and tears relationships apart. well, there is a cease-fire agreement, but there isn't a cease-fire in the strictness sense of those words. the fighting continues. there's been a lull but there's fighting on either side. and the political solutions to the crisis in eastern ukraine seems a long way off. how will they hold elections. how will the two sides of the pro-russian rebels and the government decide on how elections will be held in the east of ukraine, and what will be the status of that region in ukraine in the future if it's not independent, of course. that's what some of the rebels want. so the dialogue in recent days has been far apart on either side, and without a political solution, an escalating in the fighting just looks more likely. >> tom burridge there in southern ukraine. now, here's some handshakes going on as japan and china holding their first high-level

security talks in four years. the meeting taking place in tokyo involves officials from the foreign and the defense ministries. these talks were suspended back in 2011 because of tension over the disputed islands in the east china sea. well, both sides have stressed the importance of sincere dialogue to maintain peace. i've been speaking to our correspondent in beijing, martin patience, who gave us more about what these talks represent. >> for four years, we had no talks between the two countries. we had rising tensions between china and japan over these disputed islands in the east china sea. the big fear was that potentially, some sort of accident could even trigger a conflict, but what we have seen in recent months is i think, a recognition of the diplomatic as well as the economic cost of those tensions. late last year china's president met his japanese counterparts. they held talks for the first time. it was a pretty icy affair. both sides were playing to the

domestic audiences, but as an outcome of that meeting, we now have these talks, where the two sides are working on ways to dial down the tensions over the disputed islands and also a communication hotline, if you like, so if something does go wrong, at least china and japan can get in contact with each other and hopefully source it out. >> so how preliminary or even tentative do you think these talks are? i appreciate there's been a four-year gap, there's a lot of rebuilding to be done but do they expect anything substantiative to come out of this? >> i think what they're expecting is to try to dial down the tensions and perhaps come up with this communication hotline. on the issue of the disputed islands, that's not going to be resolved. i think both countries have resigned themselves to the fact that those simply have to disagree. china claims islands, japan controls them it claims islands. no side is going to back down. what we are seeing in the region

is rising nationalism from china's point of view. it's worried about japan's loosening of its constitution which it sees japan is taking a more military focus stance. from japan's point of view it says china is spending its budget, its military spending increases 10% year on year. what is it spending all that money on it? and it needs to be transparent about exactly what it actually wants to do right around the region. >> do stay with us here on bbc world news. still to come on the program, why pupils at schools in nairobi have reinvented the art of letter writing, as bbc's school report goes global.

vo: 85 percent of people who travel will go someplace they've already been. where's the fun in that? it's time to find someplace new. book the hotel you want with the flight you want and we'll find the savings to get you there. rich, chewy caramel rolled up in smooth, milk chocolate... let me know if this gets too hot rolo. get your smooth on. you're watching bbc world news. i'm david eades. it's been heard that one of two gunman that killed 19 people at a museum in tunis was known to the intelligence services.

hundreds of passengers are stranded at the airport in the yem nease city of athens after heavy fighting broke out between security forces and those loyal to the former president. okay. we're going to pick up on some of the potential sanctions facing russia if they're extended. alice, that's the eu's challenge, isn't it? >> absolutely right, david. absolutely right. that's the major question. because looking at russia the economic pain being inflected by those western sanctions, eu leaders will discuss the issue in a two-day summit that begins later in brussels. now, some countries want their sanctions kept in place until the end of this year. others argue that they should be eased, now that there is a cease-fire in place in ukraine and that russia is suffering enough already from the plunge in oil prices. let's have a look now at exactly how much. the russian central bank says that the country's economy could

trip by as much as 344% this year. inflation is running at 17%. and the rouble is 45% weaker. and there is concern that russia's economic weakness will spread into other countries. another big story on financial markets today. u.s. stocks say surge in the dollar has slumped after the federal reserve signaled it's not in a hurry to raise interest rates. there hasn't been a rise in rates in the u.s. for a decade so it's a very big deal for global markets. that means the u.s. market opened the door for a interest rate hike as early as june but janet yellin made it clear that there needs to be more jobs created first. that create kdd big gains on wall street. now, let's talk about yahoo!.

it's closing its china office as parts of a worldwide consolidation aimed at cutting costs. research is yahoo!'s only remaining physical presence in the country after it sold its chinese operations in 2005. a spokesperson said around 350 jobs would be eliminated. now, let's have a quick look to see how markets are reacting to that slight change of landscape over in the united states. here we go. there was budget day as well, the last pre-election budget day, currently up not to excited at the moment. germany, colonel up over 20 points. of course, as we were saying the dollar has dropped. we're keeping an eye on that after the key factor on equities and bombs for a wile now. that's the business for this hour. back to you, david. >> alice, thank you very much indeed. right. let's have a look at what prince charles is up to. he's in washington. he's been touring monuments there. and also making an impassioned

plea to clean up the world's oceans. the heir to the british throne is due to meet president obama in the course of the day, and our world correspondent, nicholas mitchell, has sent this report. >> reporter: for the best part of a decade now, he's frequently found himself being pushed out of the picture, if not by his mother then certainly by his sons. yet it's charles who's in line to be king and a visit like this to washington is a chance to make an impression. but do americans know who he is? at the lincoln memorial it appeared that they did. >> 180 kids with us. >> most of our students here understand and some of them understand the importance of his role. >> an environment that is now under real threat. >> of course the recognition charles most craves is for the issues that mean so much to him, a symposium on the oceans a speech about plastic pollution. >> today, almost half of all marine mammals now have plastic

in their gut. >> reporter: more relaxed he may be on the surface, but charles takes his campaigning zeal with him wherever he goes. later today, charles will meet president obama over there at the white house. it will be a chance for him to raise some of the issues that he cares so much about. but perhaps just as importantly, it will be a chance for him to be seen as britain's king in waiting. nicholas mitchell, bbc news, washington. now, i want to tell you about the bbc school report. it's an annual event which gives 11 to 16-year-olds a chance to make their own news stories. and this year we decided to go global. our bbc journalists have been mentoring schools in their local areas, and that includes nay nairobi. here boys have had to forego the likes of what's app and snapchat and reinvent the art of

letter writing because cell phones are not allowed. >> welcome to my school at boy's center right here in nairobi, kenya. while there are have many interesting things about my students, one thing is that students are not allowed to have their mobile phones while in school. so that does beg the question how do we communicate? it's simple. we are back to the good old days. letter writing. but these are letters that are well designed and telegraphed by students themselves. >> basically, i'm just writing to a friend of mine just to say hi, because it's begun quite a long time. >> i'm writing to my friend. just would like to say hi to her and know how she's doing. >> now the letters are collected and handed over to a mailman who take them over to a friend's

school. school. >> they've actually received their letters, from their reaction, they're very excited. some of them are actually laughing. we'll ask what some of them feel about the letters. >> i think it's nice because people don't do it often. >> i think it's a good way to get to know other people. and it's interesting to write to people who you don't know. >> some people may say that writing is outdated or old fashioned, but it does work for us. one question remains unanswered. between letter writing and texting, which is the most efficient way of communication? your guess is as good as mine. >> well that's charles with the question. i think we can go over to the boy's center in nairobi now and we can speak to tim, one of the pupils there. tim, good to have you with us. how's it all work there? have you enjoyed the experience of being a real reporter? >> yes, it was actually very

interesting. we got to learn so many new things from this experience. >> what sort of things do you feel you've learned from it. >> from the beginning, like most of my friends and i, we have never actually or never knew anything about journalism. and when this experience was brought to our school we wail got to learn a lot of things about being a journalist, about how they work and found out it was really interesting. >> and as a journalist myself i'm keen to understand what was behind this story of yours. are you not allowed a mobile phone in school or does it go beyond school as well? >> yes, it's actually against the school rules to have mobile phones in our school because we read a lot in this school of ours, so we want to concentrate a lot, so no mobile phones in our school. >> what about those who took up this idea of letter writing. how much did you -- i don't know if you wrote many letters in the process. if you do what do you see as the attraction?

because it does feel like a rather ancient art form these days. >> it's actually quite different from the ancient writing, as you said. we actually decorate the letters, we decorate the envelopes, the people are writing such that it's really creative. we came up with this idea of not just sending the mail we decorate them so they actually appear pleasing to the people who are receiving them. >> it's good stuff. i'm glad you've done the project. has it given you a view as to your future career? >> yes, actually at first, i thought it was not really good but when i got to learn about it and work with my friends from the school it was actually a very good experience and i started having second thoughts about joining journalism as a career. >> i think that sounds like a good move. thanks for having you live here on bbc news. i would quite like to be a journalist one of these days, as

well. never too late. and never too early, as we've learned with our school report. as we do for a number of years here, of course but spreading that out across the globe is exciting for all of us as well. that is bbc world news. do stay with us. a lot more still to come.

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internet giant yahoo! pulls out of china. we look at the reasons behind the decision. and the luxury world congregates in basel for the big international watch fair. how the traditional craftsmanship mixes with modern

smart watches. hello and a very warm welcome to you. this is world business report with me alice baxter. in a minute something to salivate at the near thought of it but others foam in anger. i'm talking about foie gras. but first this hour internet company yahoo! is closing its china office as part of a worldwide consolidation, aimed at cutting costs. the beijing research center is yahoo!'s only remaining physical presence in the country after it sold its chinese operations no alibaba in 2005. a spokesperson says that around 350 jobs would be eliminated. well here's martin patience in beijing. >> well the news has spread fast and a local employment agency has pulled a pr stunt and offering jobs to the sacked yahoo! employees. the internet giant says that

more than 300 staff will be laid off from what is the last remaining office in mainland china. it was a research center and one of the employees has been reacting to the news. >> i don't understand why the company is sacking us. maybe because it's better for yahoo!'s global strategy. it is very sad to say good-bye to my colleagues. >> reporter: this move doesn't come as a huge surprise. yahoo! has been rapidly retreating from the chinese market in recent years. a couple of years ago, it shut down its e-mail services in mainland china. it's had an often fraught relationship with authorities here and controversially, a few years back handed over information that led to the jailing of two chinese dissidents, but this closure, sources within the company say, has nothing to do with government pressure censorship. they say it's been driven by commercial concerns as the struggling internet giant tries to slash costs, its operating costs, right around the world.

>> now, somebody once said man can't live on bread alone. he needs caviar and foie gras as well. well, he may have to live without the latter. a french court is about to give a verdict about whether the foie gras producer is guilty of force feeding ducks. it's the first such case in france. and depending on today's verdict, it could pave the way for other producers to be prosecuted as well. let's go live now to paris and talk to hugh gatesfield. this must be making waves in paris. foie gras is a staple there, isn't it? >> reporter: it is. the french love it. they eat vast quantities of it especially at christmas and other festivities. there is a growing, small but growing movement which mirrors movements in britain and america and elsewhere that is against -- that condemns the practice of force feeding.

because as we know foie gras is produced by force feeding ducks and geese in the last two weeks of their lives. so there is a lot of attention on this trial. the judgment comes today in a couple of hours. it pits this group, l-124, which is an animal rights group, which took a video, what it claims is a video of inside of a factory in western france where a factory, where these geese were being -- the ducks were being force fed. and they say that this video showed cruelty. and we'll just have to see what the judge says whether he agrees if it does reveal cruelty, because they contest the video and says that it was set up. that a lot of images aren't actually from the inside of its factory. we'll have to see in a couple of hours, what the court's saying. >> indeed we will. hugh schofield live for us there in paris.

now, if you know your rolexes, today is a big day as the basel world luxury watch fair opens in switzerland, but it's not quite business as usual. luxury watch sales have stalled in once fast-growing markets and the much talked about apple smart watch is about to compete for precious wrist space. so does the luxury industry need to adapt to attract the new tech-savvy generation? >> reporter: welcome to baselworld, a mecca for watch makers and enthusiasts. hundreds of new designs for an industry that has built itself around precision craftsmanship and a passion for collecting. but this year there's an elephant in the room, to use thats compression.

reinventing the watch will be tricky trying to please a rising generation keen on apps rather than mechanics, squashing in features that may date quickly. >> we have the 40% display transparency. this is 60%. a u.s. south korean start-up has one answer. a hybrid design that links with android and windows phones. it inventor hopes to sell it to some big names. >> we've essentially combined a smart watch and a fully mechanical traditional watch into one unit here. so it's all there. so it starts with a crystal sapphire glass and has a touch sensor as well as a transparent organic l.e.d. display, and everything, battery as well. it makes a statement that you are an early tech adopter, but also a classic watch enthusiast as well. >> the global brands know they can't risk compromising their design standards in the rush to get senator. >> some watch companies want to

try to link some connectivitied to the product with two conditions that the watch has to remain beautiful and can be for two or three years. and also in terms of energy. if you have to recharge a watch every day, it's not very effective. >> reporter: most exhibiters here aren't even showing wearable tech. it's almost as if they're trying to work out what kind of spin to put on it that won't destroy their hard-won cache. it's too early to tell if it's a smart watch, if it's an opportunity, or a threat. nigel cassidy, bbc news at baselworld in switzerland. >> let's look at other business news this thursday. greece's deputy prime minister has warned that the country faces a liquidity problem. yanis varoufakis told the company that they would leave if it is to meet its obligations but ruled out early elections if

the eurozone fails. billionaires michael bloomberg and bill gates have launched a joint fund to help development companies pass anti-smoking laws in their legal battles with tobacco industry giants. world health organization warns that smoking is on the rise in south african countries despite declining in many other parts of the world. that means the global temple of smokers will not change much. and with the end of the so-called london fixing. until today, traders at four banks have agreed the price of twice a day on the phone. those will be the last precious metal to drop after silver and palladium made way for electronic auctions last year in order to make the market more transparent. now, of course yesterday was a big day for central bank activity. this morning european shares opening up with london's ftse

hitting a new record peak. currently up 0.17% after asian markets enjoyed their best session. and all of this upward activity shares rising back towards all-time highs and a slump then jump in the dollar triggering wild moves in the currency markets on thursday as investors priced in a later start and a slower space of future u.s. rate rises, following janet yellin's cautious approach. that's the business for this hour. one thinks they're going to be in an accident. which is why no one wants insurance. so we go cheap. you know, because we're never gonna need it. until one day, we do. now that cut-rate policy is costing us big. makes you wonder if there's something better out there . see car insurance in a whole new light. liberty mutual insurance. hershey's miniatures.

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hello. this is sports today, live from

the bbc sports center. coming up, barcelona dusts out of the champion league. and pelgreeni thinks his job is safe. and prepare for some hard-hitting tennis. raphael nadal sets up a clash with milash. hello wherever you are around the world, welcome to sport today. first up let's get the latest from the world cup quarter final between india and bangladesh at the mcg. india are well on top and heading for victory right now. they hit the second highest score in a world cup knockout match, thanks to 137 or 126 balls. bangladesh will set a target of 303 for victory, but their top order crumbled away under the bowling of. at the moment bangladesh are

152 152-6. so india looks like they're through to the final four. the aussie captain michael clock says that the pakistanis have been underrated for a long time especially in the shorter form of the game and he says don't worry about their past results, this is knockout cricket. >> what happened before is irrelevant. you know as long as individuals are confident with their own game and you get that by having success along the way, and by your preparation, making sure you're training hard then all that matters is tomorrow. doesn't matter how well you played beforehand or what your plans are afterward. it's about tomorrow being 100% focused and as well prepared as you can be. >> pelegrin says he's not worried. barcelona played a brilliant

game to knock out the last english premiere league team. barcelona finished 1-0 winners over city on the night. a lovely looping cross. his speed, skill, and technique gave barse' advance to a night in the nightclub. >> we're already on the dance floor, so let's keep dancing. each of the possible seven teams have an american. now we must focus on sunday's match and the draw on friday badss which team we face. but the most important things is our next game we have against a very difficult rival. i hope we can play a good game so those can stay here at home. >> for a moment realize what we must do in the next season. i think that we're adjusting.

our league would qualify for the round of 16. not to play against barcelona. maybe if we play against another team maybe in the last in the last eight teams. but, we have to play this year this year against a very short team. in the current moment we analyze and see which is what we must do to try to continue proving. but i think that at least it will improve. >> carlos scored twice as they sealed a 5-1 win. typically blunt about his side performance. he described the defeat as a game to forget. >> we completely deserve to be kicked out of this tournament this evening. the team playing like we did hasn't deserved to reach the next round. they played very well and became more and more self-confident during the course of the match. we tried and tried, but pressing without timing doesn't make

sense, and so it wasn't unusual for us to concede a goal resulting from a counterattack. so this evening, we have to simply say that we were kicked out and it was highly deserved. who knows who will become our home in the course of finals, we'll see if it will be one of the magic four teams of barcelona, rial, or if not, it will be one of the other remaining teams in the competition. however, i am very happy now, because we have played two great games and there are two great games to follow now. >> well he thinks ahead to friday's draw in switzerland, like all of us. here's the final eight in the champions league. it includes five former champions and two runners up. pope francis won't be happy today. his football team lost to sawn

paulo. the goal is a special one. watch leftfield, right cross, through, heads to home. terrific stuff. sir balladert has refused to take part in a debate. his refusal means the debate now won't take place, despite the other three being keen. he's seeking a fifth term in office. the world number one golfer rory mcilroy says being in contention to win this weekend's arnold palmer invitational will put him in top form. he's he's really wants that green jacket. >> it's important to feel what it's like final event going into

augusta, just feeling something on the last day, you know back nine in contention, having a chance to win, all that stuff. i don't think there's any better way to prepare for a tournament as if you get into contention you know pretty close leading up to the event. >> there's going to be some hard hitting and rough rallies in the californian desert. raphael nidal will meet up against rhinage in the last eight. nidal went through with a straight sets win. the spaniard has won the tournament three times before and is really starting to make his shot. 6-2, 6-4 was the final score for nidal. andy murray won in straight sets for the 496th match win of his career. that total brings murray level with tim henry as the most successful player. murray played lopez for a spot in the semi-finals. well number one top seed

serena williams advanced to the semi-finals with a 7-5, 6-3 win. the victory extends the american's winning streak to 15 matches in her return to the desert after ending a 14-year boycott of the tournament. bangladesh needs 142 more runs to win against india at the mcg, but they're really running out of wickets balls. we'll keep you up to date right here and check out our website, bbc.com. see you soon. bye-bye.

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the work of venerated german filmmaker has been taking place here at the museum of modern art in new york. venders is a very influential figure in the new german cinema movement of the 1970s. all told he's made some 50 films, including some that people regard as classics including "paris texas" and "wings of desire."

he's not just a filmmaker, he's an author and photographer. and it's the photographer that's the subject of his latest films. >> a photographer is someone drawing with light. >> he can be heard in "the salt of the earth," providing narration in the story of one of the world's greatest photographers, who came from a small town in central brazil. the film explores salgado's life. >> he traveled most in africa and started to take picture. but only to accompany his reports. and then he realized, these pictures interested him much more and the contact he was able to establish with the people that was more of him was in there than in the written reports. >> one of his more potent photographs is myans. can you tell me what is so effective about this photograph and where was it taken?

>> one day he found this incredible gold mine in brazil with 50,000 men were working in prehistoric conditions with their hands in this big hole. these photographs made him famous. >> he has an incredibly striking aesthetic. his photographs are beautiful. what do you make of the charge that some have made over the years that he makes the horrific beautiful. >> the charge is a very strange one, because photographers have a function in them and for a photographer to pay respect to the person he photographs, even if it's a person in distress i think, is to make a good photograph. >> the documentary has been co-directed by salgado's son, who closely observed his father working on some of his projects. >> we traveled together. they're a tribe in brazil that

have had very few contact with the outside ordinarily. they live the way they have lived from 50,000 years ago. but actually, that's amazing, because they actually know and understand what's happening. they can actually see it. now he makes photos with those new, you know, electronic camera, and you can see the photo on the back. and that's the one of the ways he actually creates a bond with them. so they understand what's happening. it's a collaboration. >> it hasn't all been smooth sailing. he found taking pictures of the genocide in rwanda really took a personal toll. >> he really withdrew and withdrew to the point of his father in brazil and had to come to terms with the fact that this land was dead. and it was his wife in order to build up the spread of the family that suggested to build a few thousand to commemorate the farm of the father and they did that. and in doing so they realized if you plant a few thousand

trees, all of a sudden water sources come back to life and they planted 2.5 million trees and it became the first humans on this planet to reforest the atlantic rain forest and prove that damage done to this planet can be reversed and that freed him to also pick up his camera again and photograph nature. >> reporter: the documentary has won a slew of festival prizes. it's a testament to his greatness as a photographer and his ability to convey through film what exactly makes him tick.

hello, i'm david eades with bbc world news. our top stories, the death toll after the tunisian attacks rises to 23. one of the two gunman was known to the intelligence services. security is tight at the basel museum where the attack took place on wednesday. this is the scene live. we'll be reporting from tunis. also gun