all that with our resident tech guru rory cellan jones. today, steel tarrifs.row, potentially higher prices on things like peanut butter and blue jeans. are you worried that a trade war will make imported goods more expensive? let us know what you think. just use the hashtag, #bbcbizlive. hello and welcome to business live. major us trading partners have condemned president trump for signing new tariffs on steel and aluminium imports. china described it as a "serious attack" on the system of international trade while the french economy minister said there were "only losers" in a trade war. the import duties will go into effect in two weeks‘ time. kim gittleson in new york explains how the sanctions will work. so you have been hearing about these tariffs for over a week now. we have to protect and build our steel and aluminium industries. president trump has finally signed the proclamations that make these tariffs a reality. so what do you need to know? the first thing is they fulfil a key campaign promise president trump made to american steelworkers. as of mar

rory cellan—jones, bbc news. some of the team on facebook — i'm @sharanjitlelebc. this is sport today. coming up. australian cricket coach darren lehmann remains in south africa but replays including steve smith sent home. world champions germany are beaten in early on with gabriel jesus scoring the only goal of the game for brazil. and the head of the commonwealth games will find out how a geography teacher from commonwealth games will find out how a geography teacherfrom ireland has inspired generations of athletes to global success. welcome to the programme. plenty to get through. we start with a cricketing news that three australian players have been sent home from the tour of south africa including the former captain and vice captain. steve smith and david warner and cameron bancroft avenue david warner and cameron bancroft ave nu e left david warner and cameron bancroft avenue left with glenn maxwell,

rory cellan—jones reports.ity lab, there's a place that's even colder. if you look right up here on this gauge, you'll see that the inside of that refrigerator is sitting at three hundredths of a degree above absolute zero. that's 100 times colder than deep space. this may be the coldest place in the universe. and this is why. embedded in this chip is a qubit, the building block for the computer of the future, which will only work under these extreme conditions. microsoft is working with scientists here and around the world to build a quantum computer. they're confident they're about to make a major breakthrough. if they succeed, there's a huge prize. quantum really represents a giant leap forward from today's technology. we can begin to solve problems that would take us today more than a lifetime of the universe to solve, in seconds, hours or days. so how does a quantum computer work? drill down into a conventional computer and you'll find the bit, the basic unit of information, which is either a zero or a one

rory cellan—jones, thank you. of words sparked by the salisbury poisoning intensifies. russia's ambassador to the uk accuses boris johnson of insulting the russian people. and coming up — with a third baby due, the duchess of cambridge carries out her final public engagement before maternity leave. coming up in sports, history is made by gareth bale as wales take on china in ryan giggs' first game in charge of the national team. some victims of crime aren't being seen by police officers for hours, or even days, after phoning for help, because of a failure to respond promptly to 999 calls. the inspectorate of constabulary says a quarter of forces in england and wales are struggling to respond to emergency calls, and are often overwhelmed by the demand. our home affairs correspondent danny shaw's report contains some flash photography. police call: hello, police, what's your emergency? has the thin blue line become too thin? the body that monitors the police says the service is under significant stress, with vulnera

earlier our technology correspondent rory cellan—jones spoke to me about the focus of the search warrantas go into cambridge analytica's office and look at the servers, look at the computers, and be assured that the data in question had been deleted. to be clear this was the data collected back in 2014— 2015 by a cambridge academic and handed to cambridge academic and handed to cambridge analytica, data relating to something like 50 million american facebook users. cambridge analytica have issued a statement again about that data? they said all along about "we haven't got that data we deleted it," and the new active —— acting chief executive, because the former chief executive stood down the new acting ceo has said, "we did not any of this data in the work we did in the us election", they also said that when facebook asked them a year ago when they still had any of this data, they still had any of this data, they searched through all their records and made sure that all the data and all the backups had in deleted, and they say they have told facebook clearly that this has all gone. and c

our technology correspondent rory cellan jones was watching. of the story of alleged misuse of facebookin actions. last night he was speaking at a public event. he was speaking at a public event. analytica, the political consultancy he says he helped create. he says he helped create. it of breaking the law in campaigns around the world. around the world. whether or not what they do is legal as long as it gets the job done. as long as it gets the job done. donald trump's presidential election campaign. campaign. iq, which was organised by vote leave in the brexit campaign. leave in the brexit campaign. that there had been illegal coordination between the two groups. coordination between the two groups. someone who leaves —— believes in british law and still do this. british law and still do this. is that you believe, that the law was broken? absolutely, absolutely. and i am so angry. the final result there had been was beside the point. beside the point. amount, whatever, if you are caught cheating, you lose your medal. one of his executives will give added into enquiry into fake news. a

rory cellan—jones, bbc news. and rory is with us now.ey said he thought that had been cheating by the vote leave campaign which may have swayed the result. is there anyway to quantify whether that could the case? what we know is that two different campaigns, the official campaign and the separate the one both used the services of this canadian firm, aggregate iq, which was offering services. all of these companies claim they can do marvellous things with data, that is their business. they are selling these marketing skills. the question he is posing as whether these two macbooks collaborated in a way that was illegal under electoral law. they both absolutely deny it and it isa they both absolutely deny it and it is a matter of britain's electoral commission to investigate. whether it actually works is another matter. he had an interesting line and said it didn't matter whether it worked or not, it is illegal. he compare that to an olympic gold medallist being found to be a drug cheat. he would still get his medal taken off evenif would s

correspondent rory cellan-jones has the story. rory: it is pretty cold outside, lat inside the university there is a place that is even colder. >> if you look at this stage, you can see that the refrigerator is 300 degrees above absolute zo. 100 times colder than deep space. this may be the coldest place in the universe. rory: this is why. embedded is a building block for the future, which will only work under these extreme conditions. microsoft is working with ndscientists here and arouhe world to build a quantum computer. they're confident theakare about toa major breakthrough. if they succeed, it will be a huge price. >> quantum represents a giantap orward from today's technology. we can begin to solve proble that would take us more than a lifetime of the universe toon solve in s, hours, or days.he rory: how doesuantum computer work? drill wn into a conventional computer and you will find the bit, thefoasic unit of ation, either a zero or a one. at the heart of a quantum computer is the cubit. it can be one or zero at the same t

rory cellan—jones is there. rory, what are they looking for? commissioner ferris said she wanted a warrant to search these officers. she did not get into corridor until this afternoon and then things moved quickly. within one hour, 18 officers from the data watchdog inside the officers, looking at computers and documents relating to that acquisition four yea rs relating to that acquisition four years ago of the facebook profiles of 50 million americans. cambridge analytica has insisted that it deleted bad data years ago and in any case it was never used during the donald trump campaign. cambridge university said it was mounting an enquiry into the case of the doctor who mounted their work, to give that data to cambridge analytica. the university says that research integrity is very important to it. the teenager who planted a bomb on a london tube train that partially exploded at parsons green has been sentenced to life in prison. ahmed hassan was convicted of attempted murderfor carrying out the attack last september. more than 50 people were i

rory cellan—jones, bbc news, copenhagen.d test against new zealand in christchurch. england were 94—5 after losing three wickets in nine balls before bairstow — aided by no.9 batsman mark wood — steadied the innings. the tourists finished the day on 290—8. tomorrow night, boxing heavyweight world champion anthonyjoshua is back in action, in one of the sport's biggest fights in recent memory. he faces the current wbo champion, joseph parker from new zealand, in wales. our sports correspondent david ornstein reports. cardiff — a city steeped in history, but more recently renowned for hosting major sporting events, and they don't come a lot bigger than this... because anthonyjoshua is the biggest show in town. he's the man they've all come to see, the hopes of a nation on his shoulders. face—to—face withjoseph parker for the final time before they become the first reigning heavyweight world champions to box on british soil. two unbeaten records on the line, three world title belts up for grabs. never before hasjoshua fought wit

earlier, our technology correspondent rory cellan—jones spoke to me about the focus of the search warrantidge analytica's office and look at the servers and be sure that the data that has been leaked, earlier, our technology correspondent rory —— the data had been deleted. the data collected back in 2014 and 2015 by a cambridge academic and handed to cambridge analytica, data relating to something like 50 million american facebook users. now cambridge analytica have issued a statement again about that data? yes, they said all along that they did not have the data, they had deleted it. the new acting chief exec, because the former chief executive stood down, the new acting ceo has said that police can be absolutely clear that we did not use any other state —— we did not use any of this data in the presidential election work, the donald trump campaign. they also said that when facebook asked them a year ago whether they still had any of this data, they searched through all their records and made sure all the data and all the back—ups have been deleted and they say they told facebook clearly

rory cellan—jones, bbc news.ving air force in the world and this sunday it will be celebrating 100 years since its formation. it was created towards the end of world war i, the first conflict in which aviation played a major role. since then, the raf has been involved in countless operations and is currently serving in 31 countries. robert hall looks at the royal air force then and now. there was nothing but you and your guns. you were alone, you know, and you fought alone and died alone. we flew like goldfish in a bowl, in all directions, swimming around the sky. sometimes standing on our tails, sometimes with our heads right down. the raf motto is "through adversity to the stars" — the early flyers needed just that determination. most of them joined the raf predecessor, the royal flying corps, inspired by the exploits of the first aviation pioneers and championed by this man, major hugh trenchard, known as the father of the royal air force. the royal flying corps was in action from the start of the first world

rory cellan—jones, bbc news.ad worsened. the state of arizona has banned uber from resuming tests on self driving cars following the death of a pedestrian last week. elaine herzberg died after being hit by a self driving car as she crossed the road outside a designated crossing area. uber has already had to halt tests in san francisco because it failed to obtain a required permit. the insolvency service is to take action against dominic chappell and three other ex—directors of bhs. it said it intends to ban the former executives from serving as a company director for up to 15 years, following its investigation into the retailer‘s collapse. former bhs owner sir philip green is not set to be subject to similar disqualification proceedings. british employers are concerned about their ability to recruit workers from the eu after brexit according to new research by government advisers. the migration advisory committee heard from more than 400 business and organisations. they found that many businesses see european mig

our technology correspondent rory cellan—jones said facebook had been very slow to respond to the claimsomers, right up until last week they were actually sending lawyers letters to the journalist pursue in this story on the guardian and the observer warning them. they didn‘t seem too concerned until it blew up in their faces. and we have seen a continual pattern of things going wrong, then apologising things will get better, they say, and then the next it the next thing comes along. whether that will have any impact on users is another matter, some people say they are giving it up, an awful lot of them. see it as quite an important pa rt them. see it as quite an important part of their lives. we have royal news for you, to lots of news, we talk about them in a moment, some invitations havejust gone out for a certain wedding. 19th of may, you might have heard of it, 600 invitations now in the post. tomorrow morning, who knows what might arrive? we be getting up slightly early. 600 invitations, people have been invited to the service at st george‘s chapel, also toa service at st george‘s

with me is our technology correspondent rory cellan—jones. he‘s amongst those who were shocked.r later, folder arrived and i clicked to download the folder, 675 megabytes of data, a chan kim out of data. first of all i wasn‘t too worried because —— chunky amount of data. it had all of my photos, videos and messages i had posted on facebook, pretty obvious. ifi posted on facebook, pretty obvious. if i had posted them on facebook thatis if i had posted them on facebook that is where they would be. but then i clicked on another thing and found that on top of that all of my phone numbers, this was a link marked contacts, and when i looked it had every contact that i‘d ever put into my phone. i thought, i suppose when i signed up way back in 2007. how has it got that? it got that because when you sign in to facebook for the first time it offers it as an option so that you know who else might be on facebook and then you can find them. that was the thinking. it to download your contacts, that includes the numbers? it includes the mobile phone numbers. but what was more concerning, i th