The free movement of persons (or workers) is at least as old as the process of European integration and represents one of the four fundamental rights on which the EU is based. The range of rights expanded through the years, specially via the EU Court rulings, and today we are allowed to move, live and work in any EU country. When we are asking ourselves what the EU has done to/for us, we can without any doubt say that the free movement of its citizens is one of the most important achievements of the EU. In fact it is so important, that we consider it as granted. Unfortunately, actions from some countries (particularly those of the UK who wants to limit the free movement of EU citizens) show that even if something is considered as granted, we have to keep working to maintain it.