this is coming to you live from berlin british military lab says it cannot prove the nerve agent used to attack a double agent screen paul and his daughter came from russia but that directly what the u.k. foreign minister told me they were absolutely categorically the guy so i said are you sure and he said. so as an international watchdog. certain we can be about the origin of chemical weapons. also coming up big changes

are taking place on the ground in syria's seven year war the rebels are being forced to leave a key stronghold near damascus and a critical summit on the country's future is getting underway in turkey. hello i'm terry martin welcome to the program. the global chemical weapons watchdog is holding a special meeting today to discuss the nerve agent attack on a former russian double agent in britain the kremlin has demanded an apology from the u.k. for saying the poison came from moscow they argue britain's failure to track down the source of the nerve agent proves that accusations are place baseless in an interview with the british foreign secretary boris johnson said there was no doubt in his mind that russia is to blame. you argue that their source oh father they

sniff edge and the chalk is russia how did you manage to find it out so quickly that's driven possessed sample something else when i look at the the evidence i mean the people from from porton down the the. have the samples do they and they they they were absolutely categorical or else the guy was so i said are you sure and he said as they've done. the ports and laboratory chief executive has spoken out countering that he's come out to say that his scientists noddle only identify the nerve agent and not where it came from we and terms of our rule were able to identify it as an overture. to enter fi that it was a military create an air feature and. we have not verified the precise source but we provided the scientific information to the government who

have then use the number of other sources to piece together the conclusions that they've come to. moving on to smell the stories making headlines around the world today the trade dispute between the u.s. and china is escalating beijing has announced new tariffs of twenty five percent on soybeans airplanes cars and other u.s. imports worth fifty billion dollars this comes just hours after washington unveiled its own list of tariffs on more than thirteen hundred imported chinese problems. a woman has shot and injured three people at the you tube headquarters in northern california before fatally shooting herself a suspect allegedly had a website that railed against you tube for censoring her videos and cutting her earnings on the platform police officials say they are still investigating a motive. and thousands of people have gathered in rio de janeiro and other cities in brazil to call for former leader louise and lula da silva to be put behind

darren's the facility is facing a twelve year prison sentence for alleged corruption the demonstrations come on the eve of the supreme court hearing to appeal the charges. presidents of iran turkey and russia are meeting to discuss the crisis in syria it comes as rebels are facing what could be a game changing setback the loss of eastern guta a key stronghold near the capital damascus under russian russian brokered deal buses carrying fighters and their families have been leaving the main town of duma bound for rebel areas in syria's north only a pocket of hardliners remain as tens of thousands have evacuated under similar deals and as peace talks between turkey russia and iran begin in ankara those nations have large but also competing interests in the outcome of the syria conflict. syria twenty eight hundred seven years of civil war

and still no wind in sight there are too many interests involved this war goes beyond the assad regime fighting rebel groups. major foreign doctors are playing their part too. these are the main ones they regularly supply weaponry and personnel to those they believe can help to meet their own geo political ends russian president vladimir putin is one of president assad's closest allies russia has provided military support to assad since twenty fifteen since then the syrian government has managed to recover lost territory with the aid of russian airstrikes putin wants to strengthen russia's military presence in the region reduce american influence and keep radical islamists of power the russian air station near latakia is no permanent fixture on the tarsus marine base russia's only such base in the mediterranean is being enlarged.

president hassan rouhani of iran is another us supporter after all iran has no intention of losing one of its closest allies in the arab world from day one to run a support to damascus with advisors weapons and troops syria in return grants around a much needed route to the hezbollah militia in lebanon. this man on the other hand would like to see assad out of power turkey has supported various rebel groups from the start and since january has had its own troops in syria one of president aired ones goals is to push back kurdish groups that gained influence in parts of syria by supporting u.s. operations against the so-called islamic state. let's bring in our correspondent. he's in ankara covering the three way summit there today between russia iran and turkey and the summit comes after years of fruitless efforts to halt the conflict

in syria as the main power brokers what ken iran russia and turkey hope to achieve with these talks. well i think these talks will focus on a variety of issues key will be the conflicts that are being created across syria this is where syrian rebels and their families all be moved to and they will be covered by a cease fire but it's a really very controversial issue given the fact that there is a differences over whether who is included among these rebels is what a group deemed as islamist terrorists are covered by this cease fire. code disagree strongly on who are considered terrorists and who are considered rebels that will be a key issue in this in these talks on top of that will be the syrian constitution the creation of a new constitution is seen as providing the framework for a final settlement that is expected to be extremely difficult issue given the fact that all sides to have conflicting views on the future of syria but for now at

least i think despite those counter to views all sides recognize the have to work together to bring an end to the syrian civil war and to ultimately achieve their goals even if many of them are contradictory rebel groups are on the verge of losing control of eastern goods on the outskirts of damascus how might that factor into these talks. well i think in many ways it will be seen as a success of this see these syrian conflict zones because many of these rebels and their families are being moved to the zones particularly some close to the turkish border this is a process of simplifying the math of syrian ultimately providing a future map of the future syria and in many ways however brutal those methods being used by the syrian regime it is seen as ultimately taking syria possibly a step closer to a final settlement. us president. he recently announced

a withdrawal of u.s. troops from syria and he will not be part of that summit in ankara today does washington have any influence left in the syrian conflict. well washington does have one key card it's supporting a syrian kurdish militia the y.p. which controls something up to a third of syria it's been a sensibly in support of the war against the islamic state but increasingly that backing of that militia is seen as providing washington as a card to play in syria making its presence felt and even though trump don't present us president donald trump said he was leaving syria we are getting reports that the pentagon has been deploying forces to support the syrian kurdish militia and that's even kurdish militia is a militia that has places to destroy and one the issues are no one will be in his talks with the iranian and russian presence will be pressing for a further extension of the operation into across syria which ultimately could bring turkey in the u.s. into a conflict which many people believe is putin's key goal in courting ancora dorian

thanks dorian jones there in ankara. on this day fifty years ago u.s. civil rights leader dr martin luther king was gunned down in memphis tennessee the caijing will be observed with special events around the country dr king is best remembered for his famous march on washington and his iconic i have a dream speech in nine hundred sixty three the event propelled the civil rights movement forward the following year congress passed the civil rights act which all discrimination. well even though the fight for equal rights has come a long way since that fatal day the struggle for justice is far from over did obvious alexander phenomena reports on a recent killing that has convulsed the african-american community in memphis. remembering dorian harris a teen killed in memphis a few days ago because he reportedly stole that can of beer the store clerk chased

him out of this shop and fired several shots. now harris relatives keep watch outside to prevent the shop from opening again. i was highly upset. because he's young he's almost seventy years old he had a bright future. you know he was a normal teenager here probably like everybody else but thank god it out was a demands to him to have. his life crisis while he was going through he should know when that. her nephew was shot but no one called the police his body was found two days later behind my house oh yeah. the man who shot harris has been charged with murder but for many in the community this case once again proves that the life of a black man counts little in today's america i don't think this would have happened

this was a young i don't think would be discussing the worth or having to prove that is what his life was more valuable than a beer amount that we would even be having discussions here or anything else is that we would have you know he was gunned down and left there for two days i definitely think this is a matter issue in a racial issue while harris families grieving in this neighborhood memphis commemorates the fifty s. and the very serious martin luther king jr assassination with many. vance plans to owner of the iconic civil rights leader who was fatally shot on the balcony of this motel activists say they are proud that so much has been achieved in the last fifty years but there is still a long way to go the laws have changed they say but too often there are not implemented properly. it's not ok for you to kill somebody over

a beer so we're not fighting to get the legislation what we're right fighting to get is the law to become to be equitably. inclusive of black people in black now so we continue to think about what we must do after it before and how we must continue to build community members. family. political power to really change hearts and minds right. and that still seems an uphill struggle just like in the days of king. now in the champions league quarter finals by a munich came from behind to secure an away win against serbia. gave the spanish hosts a deserved lead in the first levelled the score before the break thanks to an own goal from his novice. completed comeback with a diving header after half time handing the varians

a crucial second away goal ahead of the return time later this month. and in tuesday's other match champions real madrid demolished hosts eventis in what was a repeat of last year's final the night belonged to chris jalil rinaldo who gave the visitors an early lead with a close range finish before bagging a goal of the season of the season contender the portuguese forwards soared into the air unleashed an incredible bicycle kick to double his side's lead the goal was so good it brought both sets of fans to their feet marcello then made it three nil to rail madrid late on. and just forego a reminder of the top stories we're following for you here today on the news the presidents of iran turkey and russia are meeting for their second summit in six months to discuss the crisis in syria expected to focus on speeding up the peace process and strengthening their influence in the country. so you news for now

sumi will be with you at the top of the next hour and of course you'll find all our stories online a t w dot com thanks for watching. germany is a strong country. we have achieved so much we can do this and if something him we must overcome it. going where it's uncomfortable global news that matters t.w. made for mine.