Re: CDG accident, for those who claim this event had nothing to do with using different languages, here is an extract of the report, with the recommendations from DGAC.
4.1.8. in the light of the analysis of this accident and previously acquired experience, the DGAC study the expediency and methods of implementation for the systematic use of the English language for air traffic control at Paris Charles de Gaulle aerodrome, as well as the extension of this measure to other aerodromes with significant international traffic.