Foreign languages al school.
I believe that the foreign language that must be learn at school is English, since it is the language most used in the world for understanding between people and institutions.
Disappearing languages
I think that all languages are culture and the most important thing to keep a living language; it is that it is spoken among people.
The government can do what it takes to spread the language and see that people see it as something interesting to them.
In your country.
I am a Catalan, and here we speak both Catalan and Spanish, which, if I believe, is that it is appropriate for institutions in Catalonia to have Catalan as a co-official language.