more changes at the white house. president trump picks the hardlinerjohn bolton as his new national security adviser. live healthy and avoid cancer. the advice that could help to cut cases by up to a0%. in business, fears of a trade war rattle the global markets, as president trump hits china with sweeping tariffs and beijing vows to "fight to the end" with proposed tariffs of its own. plus, the facebook scandal has proved us right on tougher data regulation. that's what the eu justice commissioner argues. now, she believes the us must do the same. we'll be hearing from her in the business briefing. a very warm welcome to the programme, briefing you on all you need to know in global news, business and sport.

and also, you can be part of the conversation. with that news that obesity could overtake smoking as the leading cause of cancer—related deaths, that's new research, we're asking you if these big messages persuade you to change your own, personal bad habits? tell us what you think. use the hashtag, #bbcthebriefing. the european union has said it will recall its ambassador to russia for consultations, as they're putting it, following the nerve agent attack in salisbury. last night, the european council backed the view of the british government that moscow was, in all probability, behind the poisoning of sergei skripal and his daughter, yulia. both are still critically ill in hospital. ben ando has the latest. brussels, at the prime minister is

seeking solidarity. and last night, dea answered by withdrawing its ambassador to moscow, in the words of one per month for consultation. it is right that in the words of the eu council, we are standing together to uphold those values. what the eu's returning envoy is to be consulted about is not clear and earlier, the message is not quite as clear when donald tusk, president of eu council, was asked whether russia was involved in the salusbury poisoning. we will discuss it during oui’ poisoning. we will discuss it during our working dinner and we will be ready to answer more precisely. but later, he tweeted. .. the target, sergei skripal and his

daughter, remained critically ill but nick bailey, who was critically ill when he went to their assistants, has been sent home from hospital. nick has had to go significant medical treatment, which is no doubt very daunting for both him and his family. i have personally been amazed at the strength and resilience of nick, he is an absolute credit to wiltshire police and the wider policing family. but while the prime minister seems to have convinced britain's european allies to stand strong on russia, later today in brussels, they will be talking brexit, where she may be hoping for a softer line. president trump has named john bolton as his new national security adviser. he's going to replace general hr mcmaster, who's been sacked in the latest change in white house personnel. mr bolton is a former us ambassador to the un, he's a hawk, he's renowned

for his blunt speaking, and has advocated using military force against iran and north korea. he will be the third national security adviser in 14 months. he takes up the post next month. here's chris buckler. at what sometimes appears to be a co nsta ntly at what sometimes appears to be a constantly changing white house, president trump's latest appointment could mark the dawning of a new era in american foreign policy. the customary new tweets, donald trump announced that effective next month, john bolton would be his new national security adviser, replacing hector mcmaster, with whom the president had clashed for months. john bolton is a hawkish hardliner, he served in the bush presidency, he has called for the iran nuclear deal to be scrapped, supported military action against north korea, and has brought his voice into the trump inner circle. he has long been a

right—wing commentator for fox inner circle. he has long been a right—wing commentatorfor fox news and she chose the network to give his first thoughts about his new job. i have never been shy about what might use up at frankly, what i have said in private now is behind me, at least effective april denied and the important thing is what the president says and what advice i give him. there have been a lot of people leaving the doors of this white house, and hr mcmaster‘s departure had long been predicted, although only a week ago president trump's team were playing down such talk. the president spoke to a number of stop this morning, reassuring them that they were personnel changes, no immediate personnel changes, no immediate personnel changes, no immediate personnel changes at this time and that people should not be concerned, we should do exactly what we do every day and that he has come to work and do the very bestjob that we can. but there is a changing of the guard, and with mike pompeo secretary of state and john bolton as national security adviser, donald

trump is surrounding himself with tough talking foreign policy advisers. that may concern some, who feel their predecessors were moderating influence, and all this change comes amidst difficult democratic questions for america about russia, iran, and the planned summit between president trump in the north korean leader, kimjong warned. —— kim jong—un. let's brief you on some of the other stories making the news. buses have begun transporting hundreds of syrian rebel fighters and their families out of a town in the former rebel stronghold of eastern ghouta, this is part of an evacuation deal. the fighters in the suburb of damascus agreed to lay down their arms in return for safe passage to the north of the country. at least 13 people have been killed in a fire in an apartment block in ho chi minh city in vietnam. it broke out in the underground car park and quickly spread throughout the building. dozens of other people were injured. here in the uk, mps say the proposals for a third runway

at london's heathrow airport should not be approved without extra measures to mitigate noise and pollution levels. the house of commons transport select committee said parliament should support the project when it eventually votes on it, once those concerns had been addressed. and let's turn to our top business story — fears of a damaging trade war have sent stock markets down sharply in the us and asia. this coming after president trump stepped up his crusade to protect us industry from what he sees as unfair competition, he's announced wide ranging tariffs on imported chinese goods. the white house says it's a response to chinese theft of us intellectual property and technology. there is going to some retaliation from china. beijing has listed a range of us goods from pork to steel pipes it is ready to tax in return.

dr stephanie hare is principal director at accenture research, a global management consultancy. shejoins me now. good morning, thank you for being with us. it is interesting, the battle lines are well and truly drawn, the markets are realising that. very anxious time, even if we are just are realising that. very anxious time, even if we arejust in are realising that. very anxious time, even if we are just in the slight hold off at the moment but it looks like it is all pushing on now. we have been seeing signs of a potential trade war between the united states and china and that would obviously have a global impact, the sometime. i think what is really interesting here is that the segments that the us might be targeting with its new tariffs towards china, that is the really critical technology sectors, very key sectors for the 20th century —— 21st—century. key sectors for the 20th century —— 21st-century. this comes down to intellectual property and and the fa ct intellectual property and and the fact that you have the sort of hand all over if you want to do business in china? that has certainly been a

problem and there is this whole question of intellectual property and deft outright, as well as compelling any foreign firm, not just us firms, but any foreign firm can be compelled to hand over technology, depending on the way that it technology, depending on the way thatitis technology, depending on the way that it is produced there and that has of course led to questions about unfair competition. what is interesting is that china's response to that so far is more measured, the us is looking at something like $60 million of tariffs towards china, and the us is floating $3 billion. -- $60 and the us is floating $3 billion. " $60 billion. and the us is floating $3 billion. ‘- $60 billion. which is and the us is floating $3 billion. —— $60 billion. which is sort of like do you really want to do this? now, thank you very much. thank you. nearly 40% of all cancers diagnosed in the uk every year could be avoided if people adopted healthier lifestyles — that's more than 135,000 cases. the study conducted by cancer research uk also warns that obesity could overtake smoking as the bigger cause of the disease. here's our health

correspondent, dominic hughes. exercise is now an important part of‘s life but that is not always been the case. this was a couple of months after i had had an operation. in 2014, she was diagnosed with cancer of the womb. she will never know for sure but she felt that the extra weight she was carrying was a factor, so she decided she needed to make a change in her life. factor, so she decided she needed to make a change in her lifelj factor, so she decided she needed to make a change in her life. i decided to be around for my children, who bring such a lot ofjoy, and the thought of not being able to see them achieving what they want to achieve, itjust made sense to do something. the latest data on cancer shows that smoking is responsible for more than 54,000 cancer cases each year. 22,000 people are diagnosed with 13 types of cancer linked to obesity. skin cancer,

caused by too much ultraviolet radiation from the sun or sunbeds, affects more than 13,000 people. we would hope that we will continue to see smoking rates come down, they have been coming down at about 1% per year, so hopefully that trend will continue, if not accelerate. sadly, we are not yet seeing a turnaround in obesity related activity yet or obesity related cancer, so activity yet or obesity related cancer, so clearly, the expectation would be if we did this again in seven years's time, we would see those two getting closer together as risk factors for cancer. a healthy dietand risk factors for cancer. a healthy diet and more exercise had left her feeling better than ever. today's report is further evidence that followed her example could reduce the risk of cancer for all of us. —— following. stay with us on the briefing. also on the programme... storing data on dna. how to safeguard your videos and documents inside a double helix. let there be no more wars

or bloodshed between arabs and israelis. with great regret, the committee have decided that south africa should be excluded from the 1970 competition. streaking across the sky, the white—hot wreckage from mir drew gasps from onlookers on fiji. you're watching the briefing.

0ur headlines: john bolton's set to become the next us national security adviser, replacing general hr mcmaster. eu leaders have backed britain, saying it's "highly likely" russia was responsible for the nerve agent attack. we were just talking about cancer research uk. 0besity we were just talking about cancer research uk. obesity is growing as the biggest cause of cancer at the let us know what you think about that. a few messages. this one is from miriam from the usa. she says journalists keep using dehumanising photos of fat people to illustrate

the health crisis, suggesting little of this is about health. perhaps reconsider the definition of a general health message. and this person for a utah. let's talk about the real issue rather than blaming this on those participating in the system of profit, industrial agriculture and capitalism has made it more affordable to it nutrition deficient and calorie rich food. keep that coming in and we will keep the conversation going. thank you for that. we all know how important dna is to understanding human health, but british scientists think it could be used to solve another global problem, one you really wouldn't expect. people are producing data, photos, videos, websites, at an alarming rate. at the moment you need enormous banks of computers cooled down by lots of electricity to store it all. now experts think you could use dna instead. that's right, forget your memory stick, in future you could be storing yourfamily snaps and videos on dna. 0ur science correspondent richard westcott takes a look. we are producing data at a

staggering rate. all those videos, social media posting, on line forums. look where i am! selfies! the problem is it takes a huge amount of computer space and energy to store it all. so could the answer lie somewhere else, somewhere deep inside assault? could not resist making a video of this digital replica of the famous watson and crick double helix, the model of dna that changed the world. what if i could store the video i am making 110w could store the video i am making now onto a piece of dna. we take the movie file you sent me, which on a computer is zeros and ones, and change that into... this cambridge mathematician has devised a way of turning computer code into dna code. it means you can use the dna as a

kind of hard drive. tell us about the day you came up with the idea. the day was a big meeting discussing how we were going to keep on storing large amount of information coming from experiments on dna. we went to the bar and started talking about other ways we might store information. and in a lightbulb moment we realised the dna we were worrying about was itself a way of storing information. and american company turns nick's code into physical dna. it is a physical process , physical dna. it is a physical process, and they told us why it is so process, and they told us why it is so effective. the first huge benefit of dna is it is extremely dense. you store all of the data that is on the internet. that would be the size of a shoebox. and the second main benefit of dna is it is permanent. you can store it for over, which is very different from, umm, a normal

medium, which degrades rapidly. back at the institute in cambridge, they are world leaders in reading dna. these machines are scanning the code of everything from human beings to diseases like dysentery. and something has just arrived for us in the post. this is what comes back from america. this is your report stored on dna. where is it? it is just there. the question is, did it work? can you read it. we put it back together again and it is this file. there it is. it does not look like there any errors at all. we checked, it is a perfect copy of the file, every single zero and wind is correct. big companies including microsoft are also looking at dna storage. it is still too expensive and too slow, but that could soon

change. in five years it will be advanced enough that if you have gotten a lot of money and very valuable information you might think about going this way. and perhaps 10- 15 about going this way. and perhaps 10— 15 years before there is a product that you and i would buy for personal use. richard westcott, bbc news, talking to you from a piece of dna. that is a clinton to the future if everi that is a clinton to the future if ever i saw one to be stay with us on the briefing. here are some of the key events taking place later in the day. first up, to moscow, where the russian foreign ministry are set to be holding a press conference, where they are expected to give the latest update on uk russian relations. and in rome, the italian parliament will be sitting for the first time since the election that saw anti—establishment parties make the most gains and left no clear victor. and in warsaw, thousands of people

are expected to march in protest of a new draft law tightening restrictions on abortions. now it's time to get all the latest from the bbc sports centre. coming up. two old foes are gearing up coming up. two old foes are gearing upfor coming up. two old foes are gearing up for the opening race of the formula 1 season in australia to be zlata n formula 1 season in australia to be zlatan ibrahimovic is to lead manchester united. and tony romo makes his professional golf debut. the world of formula 1 is gathering in australia ahead of the opening race of the season on sunday. defending champion lewis hamilton has no chance at the circuit in melbourne, trying to be the third in f1 history to be winning four times. he is looking forward to the battle with sebastian vettel. the ultimate goal is to be the best. you have to goal is to be the best. you have to 9° up goal is to be the best. you have to go up against the best. it has been a great experience for me to race sebastian vettel, he has four world

titles, more than any other. this is an exciting year for formula 1 fans. there is a lot to come and plenty to look forward to. it is pointless however to come here and say i will blow everyone away based on testing. but i think we are in good shape. this man, zlatan ibrahimovic, will lead manchester united with immediate effect. jose mourinho has agreed to release him of his present deal in june. it agreed to release him of his present deal injune. it is not known where he is going but it is understood the 36—year—old swedish international would join la galaxy. in case you missed it, hard to do, gareth bale got a hat—trick for wales, beating china 6—0 in the first match of the china 6—0 in the first match of the china cup. he was given a huge

welcome, scoring two goals in the first half and another in the second. they will play the winners of uruguay and the czech republic. ireland will qualify for the 2019 cricket world cup if they beat afg ha n cricket world cup if they beat afghan is done later following a surprise defeat. it would have seen them go up against zimbabwe. they fell three runs short. in the nba, the cavaliers prosper despite their coach going on a leave of absence due to illness. they go up against toronto, leading 15 points at one stage. but thanks to lebronjames, they got their third straight win. it is definitely different. it is like losing one of your best players. we have to have guys step

up. people have tried to step up, and we have to do the same as they collect a group. -- collective. that was the sport briefing. tanzania has a long history of practicing traditional medicine, it's healing power is mainly based on theories, beliefs, and experiences of its users. now the authorities have approved five types of herbal medicines in an effort to regulate the industry. about 60% of tanzanians rely on herbal medicine, but as sammy awami reports from dar es salaam, there's still a long way to go before it's fully formalized. regularly available and relatively affordable. widely displayed along main roads and sold in almost all major markets. herbal medicine is big business in tanzania. translation: we get people with all kinds of medical conditions. young women with gynaecological conditions. young people come with

erectile dysfunction problems. with just one medically trained doctor for thousands of patients, up to 60% of ta nzanians for thousands of patients, up to 60% of tanzanians depend on herbal medicine according to the ministry of health in the country. people here will tell you they can cure various medical conditions. but effective regulation and monitoring of this means the healing power of contribution to illness or death is hardly known. but that has not discouraged users like johnson, hardly known. but that has not discouraged users likejohnson, not his real name, who shared with me how a popular herb hurt his life. translation: it gives good results, but i am not sure about the side effect. its effectiveness is without question. now my performance is

great, no matter the situation. practitioners aggressively advertise using digital, mass media, and other unconventional techniques. but tanzanian authorities are now trying to encourage practitioners to get their herbs tested and verified so there are no unidentified effects. today the council is sitting and scrutinising the other products which might be, by the end of this month, we will have more details. there are so many others who have taken forms, more than 20. today, eve ryo ne taken forms, more than 20. today, everyone will be reduced to more than one product. byjune we have more than even 20. there are more challenges ahead. we need to be patient. we are training them, but it takes time. we want to show them

why we need hygiene in their facilities, why we need hygiene in the process of producing medicines. it is clear the traditional herbal medicine industry is here to stay, but the importance of making it as safe as possible is also now clear. bbc news. interesting developments, and growing in popularity all over the world, it is fair to say. stay with us on world, it is fair to say. stay with us on bbc news. so much more to come. the business briefing is but moments away. hello there. wet and breezy weather will continue to spread from west to east across the uk overnight. by friday morning,

it should eventually start to clear from eastern areas. heavy rain, though, for northern ireland, scotland, gradudally becoming confined to the far north of scotland and the northern isles. skies brightening up elsewhere with sunny spells, a few showers for northern ireland and some wetter and breezier weather will push into the far south—west. temperature wise, 9—11, on the cool side, especially further north. during friday night, it looks like that feature will bring some rain and breezy weather to the southern half of the uk, whereas further north it will be clearer and colder, a touch of frost in places, less cold for england and wales because of more cloud cover. a mixed bag on the weekend, we'll see sunny spells, a few showers, fairly mild, especially where you have all the sunshine and looks like sunday will be the better day of the two for most of us. saturday, central and southern areas will be rather grey with outbreaks of rain, the best of the brightness further north, but there'll be a few showers here, these will be wintry showers over higher ground. it could be damp. breezy with

showers in northern ireland in scotland, wintry over the high ground. there's your temperatures, between nine and 11 degrees. not too bad in the strong late march sunshine. saturday night. the rain will clear for the south. widespread clear skies. show was in the north—west. a chilly night we light winds, these guys, a touch of wind, and four degrees in towns and cities. —— clear skies. and four degrees in towns and cities. —— clearskies. more and four degrees in towns and cities. —— clear skies. more such an across—the—board. showers cities. —— clear skies. more such an across—the—boa rd. showers in northern and western scotland. wintry on the hills to be dry elsewhere. feeling a touch more mild especially in england and wales. 9-10 especially in england and wales. 9—10 further north. the run—up to

easter is looking like temperatures will start to fall. northerly winds turning to overnight frost. they could even be some snow in the forecast. —— there could even.