Border Report: A Former Ambassador Gets Real Christopher Landau, the former U.S. ambassador to Mexico, spoke candidly about his post to fellow diplomats on a call organized by the Council of American Ambassadors two weeks ago. Plus: the latest on the border sewage crisis, a plan to help migrants pay for legal assistance and more. Image via Shutterstock The world recently got an inside view of what the United States’ onetime top diplomat south of the border thinks about U.S.-Mexico relations. And it has gone largely unnoticed. Christopher Landau, the former American ambassador to Mexico, spoke candidly about his post to fellow diplomats on a call organized by the Council of American Ambassadors two weeks ago. A recording of the call was uploaded to YouTube and, as of Monday morning, amassed 2,000 views.