In relation to the language problems in Spain and other countries around the world.....this situation is presently being addressed by ICAO and the aviation authorities in each ICAO state.
By March of next year, certain standards will have to be met. ICAO has set out six levels of proficiency and both pilots and ATCOs will need to reach Level 4 in a number of different areas.
There is a big drive on at the moment to help airlines and authorities to bring their employees up to standard. I am not sure yet what not reaching the required standard on time will mean though.
For now, I'm just concentrating on teaching pilots and some ATCOs......
(Jerricho.....I'll be able to fit you in soon!)