Brussels, 06/04/2004 (Agence Europe) - Negotiations between the EU and United States to create a single air space between the two continents is making progress, but many problems remain, said a source close to the dossier on Friday at the end of the fourth negotiation session, which took place from 29 March to 1 April in Brussels. The main bone of contention between the partners remains access to the American market by European airlines, which the EU feels is insufficient and unfair to...