AILSA CHANG, HOST: Remember Brexit? That has already happened, but the U.K. and European Union are still trying to agree on what their post-divorce relationship will look like. And it is not going well. But not everyone loses in a divorce. It seems the tiny European nation of Luxembourg is one of the biggest winners. Reporter Rebecca Rosman wanted to find out why. REBECCA ROSMAN, BYLINE: The first thing you need to know is that even Luxembourg isn't that proud of being called a whiner when it comes to Brexit. GILLES WALERS: It's a disaster from a European perspective.