Boss cant tell the difference. This is lego. This is lego, youre telling me . This is not lego. Its trying to be lego, is my assessment of it. Out of vogue after 25 years at the helm, the editor of british vogue, alexandra shulman, says shes stepping down. And coming up in the sport on bbc news. Serena williams has backed britainsjoanna konta to be a future Australian Open champion despite knocking her out in the quarter finals in straight sets. Good afternoon, and welcome to the bbc news at one. Donald trump is promising a big day on National Security today, as he makes good on his pre election promises to crack down on immigration, and tighten internal security. Hes expected to give details of how america will build its wall along the border with mexico. Hes also expected to halve the number of refugees allowed into the us, and tighten Visa Controls on visitors from a number of predominantly muslim countries. 0pponents have reacted with alarm to the plans, as david willis now reports from washington. Were going to have our borders nice and strong. Were going to build a wall. Build a wall. Build a wall we have to build the wall, folks. It was the soundtrack to Donald Trumps unorthodox campaign for president a call to build a wall along americas southern border with mexico. Now he seems set to press ahead with measures he believes are vital to stemming the illegal flow of immigrants into the United States. The president on his twitter account said simply hes vowed to make mexico pay for it whats more, although the Mexican Government has refused to do so. Translation we recognise that the United States has a right to build the wall, even though we dont like it. But its another thing to get a neighbouring country to pay for its construction. We have said many times that this is unacceptable. Its the clear position of the Mexican Government and the mexican people. Later in the week, to round off a busy start to his presidency, mr trump is expected to sign executive orders, closing americas borders to refugees, and limiting access to citizens from seven african and middle Eastern Countries countries the administration believes export terrorism. Theyre mainly muslim countries, but the mantra of the Trump Administration is america first. A country that traditionally has opened its doors to immigrants is about to head in the opposite direction. In a moment well talk to our correspondent in washington, but first lets go to will grant in mexico city. The big question is how this school is going to be paid. This wall. There is a lot that mexicans may disagree with, but if there is one thing they can rally around it their hatred, their complete rejection of this wall. I bet the body from the top politicians to workers in Car Factories everybody, from the top politicians to ordinary people up and down the country reject this friday and their clear that mexico will not pay for it. Thats what they say. This is having a great impact on the popularity of the president here, and wreak a pena nieto, who is due to meet mr trump in washington, dc on the 31st. It has hit him hard, hes facing the Lowest Popularity figures of any mexican president for two decades. It is his handling of this particular issue that has hurt him so particular issue that has hurt him so hard. As far as mexicans are concerned, they simply will not be paying for this either before or after the event, in terms of remittances, some kind of control of taxes, whatever it is that mr trump is proposing, you can be very sure that mexicans will oppose it. Thank you. And we can speak to our correspondent in washington, gary 0donoghue. President trump has promised a lot more detail on National Security, but hes also said he will have more detail and but hes also said he will have more detailand an but hes also said he will have more detail and an investigation that he has announced he will launch this morning into voter fraud. Its interesting. Donald trump won the election here fair and square under the rules of the constitution, he won 33 states, 306 electoral votes, but he didnt win the popular vote. Hillary clinton got 3 million more votes tha N Hillary Clinton got 3 million more votes than him countrywide, and he doesnt like it one bit. Several times he said that there has been voterfraud. He is now announced this investigation. There is no evidence of voter fraud on anything like that scale. I think his aides will be pulling their hair out this morning because this kind of thing is likely to overshadow what should bea is likely to overshadow what should be a very big day for him in terms of fulfilling one of his promises the wall. Plus those other measures on immigration. We are looking at a potential temporary ban on refugees coming into the United States. 85,000 came in last year. That will have a huge impact worldwide. And again these huge views of restrictions on seven countries from north africa and the middle east, pending the imposition on what they are going to call in the long run extreme vetting. That could all be subject to legal challenge, particularly because they are predominantly muslim country. The lawyers could say it is discriminating on religious grounds and that is unconstitutional. Thank you, both. And you can get much more on these first days of the trump presidency. Thats 100 days with katty kay in washington, and Christian Fraser in london at 19 00 tonight. The Prime Minister has backed down in the commons after pressure to publish the uks plans on how the uk will leave the european union. Theresa may now says the government will publish a formal white paper for scrutiny. She had been under pressure from labour mps and a number of conservatives to produce a policy document. It will be separate from the Legislation Mps will vote on, which would trigger the process of leaving the eu. A bizarre political correspondent. Here is our political correspondent. Off to the commons. Yesterday a Supreme Court ruled against the Prime Minister, forcing her to consult parliament before starting formal brexit negotiations. That wasnt enough for some mps who complained about the lack of a clear vision of the governments plans. 0rder, questions to the Prime Minister. But today she sought to seize the initiative with an unexpected announcement. Ican announcement. I can confirm to the house that our plan will be set out in a white paper. A white paper, formerly setting up the governments approach, was a central demand of the opposition. The Labour Leaders struggle to rethink his attack. Because we know when this like paper is going to be available to us could we know when this white paper is going to be available to us and why its taken so long to get a . Theresa may said the timing was less important than negotiating a good deal. Cand deal. C and others asked for a white paper. Ive been clear there will be a white paper. What im also clear about is that the right honourable gentleman always ask about process. About the means to the end. I miss government focusing on the outcomes. With focusing. I and this government. Jeremy corbyn was determined that it would mean cutting taxes on big business. Will she offer some clarity and some certainty and withdraw the threat to destroy the social sector structure of this country by turning us structure of this country by turning us into the Bargain Basement she clearly threatens . Tomorrow the government will publish the deal to get parliaments improvement for starting formal brexit negotiations. Ministers are confident they can get it through without significant setbacks. But long and complex battles lie ahead. Lets speak to our assistant poltiical editor, norman smith. How Big A Climb Down is this for the Prime Minister . Well, make no mistake, it is a climb down because Downing Street have repeatedly rebuffed the idea of publishing a white paper. I was speaking to some of mrs mays people this morning and they said they would not publish a white paper because if they get mps out they will move onto demanding something else. And in the commons mrs may gets up and says, we are going to publish. But it strikes me as quite a crafty climb down because politically this is a concession mrs may was perhaps always planning to make. Because governments almost a lwa ys make. Because governments almost always published a white paper before they going to negotiations about other eu treaties. So she may a lwa ys about other eu treaties. So she may always have intended to do this. And you sense that for many conservatives, this will keep them on board. Because there were a group of tory mps poised to side with Opposition Politicians to vote against mrs may and demanded white paper. So she has defused that and wrong footed jeremy corbyn, who lined up in the commons to ask her a whole are critical questions about the white paper. He was left somewhat trying to find his way. So, yes, its the climb down. But its quite a clever climb down. And one which mrs may must always have intended to make. 0ne which mrs may must always have intended to make. One other thing to say, in the last few minutes weve been told by Downing Street that the bill to trigger article 50 will be published tomorrow. That is going to be the next focus of possible argy bargy over brexit, as mps look at that and decide what sort of amendments they want to table. So thatis amendments they want to table. So that is going to be the next big bust up over brexit. Thank you. A man has been arrested in connection with alleged threats against the campaigner gina miller, who led the Brexit Court Case against the government. The 50 year old man was arrested in Londons Knightsbridge this morning. Our legal correspondent, clive coleman, is here. What more can you tell us . Officers from the mets anti cyber crime unit, 0peration vulcan, the rest of this 50 year old man this morning in knightsbridge this morning on suspicion of racially aggravated malicious communication. The arrest is in connection with a complaint made on the 6th Of November By gina miller. Shes the woman who successfully challenged the governments plans to trigger article 50 of the lisbon treaty without an act of parliament. She won her case at the court yesterday. It relates to threats made online and a second unrelated comment believed to have been made by the same suspect in august 20 16. The arrested man is currently in custody ata arrested man is currently in custody at a Central London police station. As pa rt of at a Central London police station. As part of the same investigation, we are told that the Police Issued eight Cease And Desist notices to various individuals around the uk. They do what they say on the tin. Those notices that they if you dont stop the behaviour youre involved with, that could lead to police action. Speaking to me in december following the Supreme Court hearing, gina miller outline the general nature of the threats she has faced. They are quite vile. The Sexual Violence is very vile and i wouldnt like to say, but anything you can probably imagine is what ive been threatened with. Then there have been particular Death Threats about slitting my throat, or beheading me, or whatever it is. Todays arrest is separate from the arrest by officers from the same met unit in early december, during the Supreme Court hearing itself, of a 55 year old man in swindon on suspicion of the same offence. He was released on bail. Clive, thank you. David cameron has called for more funding for Dementia Research as he revealed that he is the new president of the charity Alzheimers Research uk. The former Prime Minister says the focus on Alzheimers Research lags too far behind that for cancer and strokes. He says he wants to win the Battle Of Priorities because dementia shouldnt be written off as an inevitability of later life. The laws which ban sexist dress rules at work arent being enforced properly, according to a group of mps. It follows the case of a woman who was sent home from herjob at an Accountancy Firm for not wearing high heeled shoes, while the same company had no dress code for men. When mps began to investigate the story, they were inundated with complaints from women with similar experiences. Simon gompertz has more. The receptionist who wouldnt give in. Nicola thorp refused to wear heels between 2 4 inches high. She kept her flat shoes on, was sent home without pay, and now mps have taken up are caused. The report is great because it doesntjust focus on high heels. This was neverjust about a on high heels. This was Neverjust Abouta Pairof on high heels. This was neverjust about a pair of shoes. Its about how women are viewed in the workplace. Theres so much pressure on women to notjust look professional, but to look attractive. Mps heard from hundreds of women who said they had hurt their backs, wearing crippling pain and thought being forced to wear heels was sexist. Now there is a call for Awareness Campaigns and bigger fines for employers. Itsjust common for employers. Its just common sense. For employers. Itsjust common sense. If people use their common sense. There are a lot of people wearing flat shoes now, which is the fashion. Thats what it should be. You shouldnt have to totter around in high heels if you dont want to. Dress codes at work have to comply with health and safety regulation to reduce the risk of injury, and with the equality act which bans dissemination. While there was likely to be differences between the way men and women present themselves, what is applied should be reasonable, which applies to heavy make up, too. The government says what happened to nicola thorp over high heels was unlawful. But mps have found that the pressure on women is widespread and most would like to see something done about it. Youre wearing high heels. Have you been forced . Definitely not. Looking smart is subjective. Wearing flat shoes doesnt necessarily make you look not smart. Ifi doesnt necessarily make you look not smart. If i feel comfortable in heels, i will. Not smart. If i feel comfortable in heels, iwill. But if not smart. If i feel comfortable in heels, i will. But if i dont, i dont think i have two. It should not be a thing. I think there is a feeling that wearing high heels is more feminine, that it wearing high heels is more feminine, thatitis wearing high heels is more feminine, that it is smarter. Ive never been told to wear heels. If you were, what would you do . I would be very, very put off working for that company. The campaign over high heels has highlighted the tyranny some women feel subjected to over their appearance. Mps are saying more still needs to be done to make sure they comes into work in the shoes they choose. Our top story this lunchtime. Donald trump is to unveil his plans to build a wall with mexico, Stop Refugees entering the us, and tighten Visa Controls with predominantly muslim countries. And still to come. As the cold snap continues, reports of a sharp rise in the number of people sleeping rough on englands streets. Coming up in sport at half past. Liverpool playmaker Phillippe Coutinho has signed a new five year contract, worth around £150,000 a week, making him the highest paid player at the club. China may be one the worlds biggest producers of many of the things we buy, but its also gaining a reputation as one of the worlds biggest producers of fake goods. Some of the most famous high street brands are losing out on billions of pounds in trade, because of counterfeiters. Their merchandise is often so good, its impossible to tell the difference between whats real and whats not, as our correspondent in beijing, robin brant, found out when he went to speak to the boss of the toymaker, lego. Billions and billions of these little plastic bricks have been sold the world over, and now lego is betting big on china. What started out with hand cut bricks in denmark in 19119 is now a 100 million state of the art operation near shanghai. But they are not the only ones doing it. Copies like this and fakes or counterfeits are prolific in china. Lego is currently suing the firm behind this copycat star wnrs model. So how easy is it to spot the difference . We bought a real one and a copycat and asked the experts. If you have to ask me to guess, i would say this one, maybe. Which one do you think is real . You think this one is real. Youre right. The truth is, they look and feel almost identical. The copys so good, in fact, that even the boss of that huge new lego factory cant tell. Have a little look at that for me. Just from there. What do you think of that . It looks like a mini figure to me. What do you think of him . Two men. Which ones yours . Just have a guess for me. I would say this is lego and this is not. 0k. This is lego. No, this is lego. This is lego. Bought from toyrus yesterday, built by my daughter. Thats not real. Its not lego. It is trying to be lego, is my assessment of it. Lego is not the only foreign firm investing big in china but having trouble with local copycats. Land rovers are now made here. Whi