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