Donald Trump is pushing ahead with his campaign promise to build a massive border wall between the US and Mexico, disregarding criticisms about the cost and physical feasibility of the project. Despite the fact that the wall will be a massive infrastructure project, the administration seems to be in a rush to begin work as soon as possible – last week, the Department of Homeland Security issued an open call for designs - but architects have just five days to submit their proposals. There’s won’t be a lengthy period to prepare for the open call period, either – submissions open soon, starting on March 6th and closing on March 10th.